August 2026 Newsletter Recap: Expanded Capabilities. New Solutions. Trusted Ductmate Quality & Performance.

Posted on by Ductmate Industries

Expanded Capabilities. New Solutions. Trusted Ductmate Quality & Performance.

Ductmate is excited to announce the launch of our new Formulated Products Division, an important investment in the future of our products, capabilities, and customers.

Over the past year, we have made extensive upgrades in our production facility, including automating our sealant production lines and doubling our capacity. These upgrades will allow us to better support our customers, strengthen our existing product offerings, and bring new solutions to the HVAC industry.

This new division will support the continued development of sealants, adhesives, encapsulating edge coatings, cleaners and lubricants, sealing tapes, gaskets, and more. New product releases designed to meet evolving application and performance needs are coming soon.

Although we’re expanding, one thing will never change: our commitment to quality. You can continue to expect the same proven quality, reliable service, and trusted performance that have defined the Ductmate name since 1978.

A new division. Expanded capabilities. The same Ductmate quality and performance you trust. We look forward to sharing what’s next!

NEW & FEATURED PRODUCTS

INSTAseal

INSTAseal® is a peel‑and‑stick foil-backed butyl tape sealing solution designed to create a durable, air and weather‑tight seal on metal duct, flexible duct, and duct board, ideal for low, medium, and high‑pressure ductwork when speed and reliability matter for consistent application of duct sealant, every time.

Available in 2”, 3”, and 4” widths, INSTAseal is designed for indoor or outdoor use, holds up in all weather (including cold conditions), and resists UV exposure, mold, and mildew to help seals stay reliable over time.

With an easy tear and simple press‑down application, you can move quickly without cutting tools, helping cut installation time and save labor. Its instant adhesion means you can seal and immediately test or pressurize the system, and even make modifications or repairs while the system is operating, helping reduce downtime.

D-ZINC

D-ZINC is an industrial degalvanizer spray designed to help keep roll-forming machines, shears, punch press dies, and notchers free from galvanizing buildup. It works by softening, loosening, and flaking away galvanizing debris while also cutting quickly through galvanized scale and rust. D-ZINC is safe for use on metals, alloys, rubber, and most painted surfaces, making it a versatile maintenance solution for a wide range of equipment.

Formulated for easy spray-and-wipe application, D-ZINC not only cleans but also helps protect equipment and maintain product quality. With daily use, it helps keep machines clear of buildup while acting as a high-quality lubricant that supports smooth, efficient operation, even on Ductmate’s own flange systems.

EVERseal Spray

EVERseal™ Spray is a cost-effective, sprayable water-based duct sealant designed for sealing metal ductwork in shop and fabrication applications. Its spray-grade formula applies easily with a common airless sprayer, helping deliver time and labor savings over traditional application methods while providing a dependable solution for indoor and outdoor use.

Built for performance and compliance, EVERseal Spray is suitable for applications up to 15″ w.g. and offers excellent UV, flexibility, and mold-resistant properties. It is UL GREENGUARD Gold Certified, UL 181 B-M Listed, UL 723 Classified, LEED compliant, and meets applicable SCAQMD standards, making it a reliable and efficient, professional-grade duct sealing solution.

EnviroSeal & EnviroSeal Plus

EnviroSeal™ is a smooth, high-viscosity water-based duct sealant designed for sealing joints, seams, and duct wall penetrations. Built for all HVAC ductwork applications, this indoor and outdoor-grade sealant remains flexible, is paintable, and provides excellent mold and water resistance for dependable long-term performance.

With EnviroSeal, you can protect duct systems against air leaks while ensuring project compliance. It is GREENGUARD Gold certified, UL 181B-M and UL 181A-M Listed, UL 723 Classified, LEED compliant, meets applicable SCAQMD and CDPH standards, and conforms to NFPA 90A & 90B requirements.

Also available in EnviroSeal Plus with fiber reinforcement.

Quick-Stick CA

Quick-Stick™ CA is a California-compliant duct liner spray adhesive designed to provide quick tack and a permanent bond in a single application. Its high-build, pressure-sensitive formula bonds porous substrates and all common forms of HVAC insulation, including fiberglass, polyester, and elastomeric materials. The aggressive adhesive is also suitable for bonding foam, metal, and wood.

Quick-Stick CA is methylene chloride-free, HAPS-free, and formulated without ozone-depleting substances. Its low-VOC formula complies with California SCAQMD Rule 1168, making it an ideal choice for HVAC duct liner applications where performance, convenience, and regulatory compliance are essential.

The self-contained, disposable system makes Quick-Stick CA easy to transport and apply on the job site while providing excellent coverage. Its high level of tack helps installers work quickly and efficiently, reducing the need for multiple applications while creating a strong, reliable bond. Quick-Stick CA is also offered in an aerosol can for smaller applications and convenient portability.

INDUSTRY NEWS & MORE

Spray Adhesive Best Practices: A Guide to Proper Application

Learn essential spray adhesive best practices that improve bond strength, boost efficiency, and help deliver consistent installation results.

Click here to read the full article.

Applying Sealant with a Brush: Thickness, Technique, and Common Mistakes

Discover the best practices for brush-applied duct sealant to achieve consistent coverage, lasting durability, and dependable performance.

Click here to read the full article.

What the Methylene Chloride Ban Means for the HVAC Industry

Understand the EPA’s methylene chloride ban and its impact on HVAC products, compliance responsibilities, and industry operations.

Click here to read the full article.

Rapidmate Exclusive Advanced Labor-Saving Features Video

Tired of machine jams, slow reloads, and uneven seals during duct assembly? The Rapidmate Corner and Fastener System is the most advanced, labor-saving corner lineup in the industry. Engineered specifically to overcome the common failure points of traditional corners, Rapidmate delivers unprecedented speed and reliability in both the shop and the field.

PROMOTIONS

Cable Shark Cable Hanging System

Take 10% off all Cable Shark products with the promo code SHARKWEEK26 from July 27 through August 31, 2026, during this limited-time promotion!

*Market restrictions may apply.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!

Applying Sealant with a Brush: Thickness, Technique, and Common Mistakes

Posted on by Ductmate Industries

Effective duct sealing starts with careful preparation and proper application. Applying sealant at a consistent thickness, using the right brush technique, and allowing it to cure fully helps produce a durable seal and dependable system performance.

Follow these best practices to achieve a consistent, durable, and airtight seal when sealing ductwork with a brush.

Preparing the Duct Surface

Apply sealant only to clean, dry, and sound surfaces. Dirt, dust, oil, fabrication lubricants, moisture, rust, and loose material can prevent the sealant from properly adhering to the metal.

Inspect each connection before sealing. Joints should be fully seated and fastened. Poorly fitted connections or large openings should be corrected mechanically rather than filled with excessive sealant.

Before beginning:

    ✅ Confirm that joints are properly fitted and fastened
    ✅ Remove oil, dust, moisture, rust, and loose material
    ✅ Review the product’s technical and safety data sheets
    ✅ Verify acceptable application temperatures
    ✅ Identify all joints, seams, fasteners, and penetrations requiring sealant

The specific locations to be sealed will depend on the duct construction, sealing class, and project specifications. Sealing locations may include transverse joints and longitudinal seams, elbows and fitting connections, takeoffs and collars, access-door frames, and duct-wall penetrations.

Selecting and Positioning the Brush

Brush selection may depend on the sealant’s consistency. A 2- or 3-inch chip brush with short, stiff bristles generally provides good control around joints, corners, fittings, and fasteners. Heavy or fiber-reinforced sealants may require firmer bristles.

✅ Use a clean brush with straight, firm bristles to achieve even coverage and keep debris out of the sealant.
❌ Avoid brushes with loose, bent, or hardened bristles, which can create gaps, produce uneven coverage, or leave debris in the sealant.

✅ Hold the brush at a moderate angle, typically around 30 to 45 degrees.
❌ Do not press so hard that the brush scrapes sealant away from the joint.

✅ Brush across the seam to work material into small gaps and irregularities.
❌ Do not brush only parallel to the seam, which may leave the joint insufficiently covered.

✅ Use lighter finishing strokes to smooth the surface and feather the edges.

Application techniques will vary slightly depending on the shape and construction of the ductwork. Pay close attention to the duct profile to ensure complete coverage in areas that are easy to miss.

⬛ On rectangular duct, pay close attention to corners, standing seams, drives, and changes in profile.
⚫ On round duct, apply sealant around the entire circumference and inspect the underside carefully.

Building a Consistent Layer

Load the brush with enough sealant to bridge the joint and cover the surrounding metal. Make sure screw heads, rivets, corners, and other potential leakage points are completely sealed.

If reinforcing mesh is required, apply a base layer of sealant, embed the mesh without gaps or wrinkles, and cover it completely with additional material.

IMPORTANT: Avoid applying sealant as a thin, paint-like film. The material must form a continuous layer at the wet-film thickness specified by the manufacturer.

Work in manageable sections and avoid brushing sealant after it begins to skin over. Overworking partially set material can create drag marks, gaps, or poor adhesion.

Applying the Correct Amount of Sealant

Applying more sealant than specified does not necessarily create a better seal.

Too little sealant can cause: gaps, pinholes, exposed seam edges, incomplete coverage, and air leakage.

Too much sealant can cause: sagging, cracking, uneven shrinkage, longer curing times, and a dry outer skin with uncured material underneath.

Aim for a wet-film thickness of approximately 60 to 80 mils during normal application, unless otherwise directed by the product instructions.

✅ Use a wet-film gauge to confirm that the sealant falls within the recommended range.
❌ If the layer is noticeably thicker than a nickel, the sealant is likely overapplied.

If multiple coats are needed, follow the manufacturer’s instructions for thickness, drying, and recoating.

Measuring Wet-Film Thickness

Use a wet-film gauge, also called a mil gauge, to confirm the thickness of freshly applied sealant:

  1. Press the gauge straight into the wet material until it contacts the duct.
  2. Remove the gauge without dragging or sliding it.
  3. Locate the highest tooth that is wet.
  4. Find the next tooth that is dry.
  5. Read the thickness between those two measurements.

Take readings at several points, including seam intersections, corners, vertical surfaces, and the underside of the duct.

✅ Measure the sealant while it is still wet.
❌ Do not rely only on appearance. A seal may look complete while still being too thin.

Inspecting and Curing the Seal

Before leaving the application area, inspect for:

    ✅ Complete coverage across every joint
    ✅ Covered fasteners and seam edges
    ✅ Consistent thickness
    ❌ Pinholes, gaps, thin areas, or exposed metal
    ❌ Runs, sags, debris, or excessive buildup

Correct defects while the sealant is still workable. Allow the material to cure fully before pressurizing, insulating, painting, or concealing the ductwork. A surface that feels dry may still be uncured underneath.

Choosing the Right Sealant

Ductmate offers a variety of water-based and solvent-based duct sealants to meet different application, budget, and jobsite needs:

PROseal® & FIBERseal®

  • Premium, water-based formulations that deliver dependable performance in demanding HVAC applications.
  • PROseal features a smooth texture, while FIBERseal adds fiber reinforcement for enhanced strength.

EVERseal™ & EZ-Seal®

  • Commercial-grade formulations that provide reliable performance at a cost-effective price point.
  • EVERseal features a smooth texture, while EZ-Seal adds fiber reinforcement for enhanced strength.

EnviroSeal™ & EnviroSeal Plus

  • High-viscosity, water-based formulations that offer excellent mold and water resistance for indoor and outdoor installations.
  • EnviroSeal features a smooth texture, while EnviroSeal Plus adds fiber reinforcement for enhanced strength.

SOLVseal™

  • A premium, low-VOC solvent-based formulation that dries quickly, making it well suited for shorter project timelines.
  • Offers minimal shrinkage, high water resistance, and strong sealing performance for demanding jobsite conditions.

Regardless of which one you choose, Ductmate sealants are extremely resistant to cracking and will remain permanently flexible.  This is especially useful for applying sealant in the shop and then transporting it to other locations or a project site.

Alongside excellent adhesion to metal, they have a lower brush drag, resulting in better spreadability and allowing for a more even and consistent coating, ensuring an airtight, leak-free seal.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Spray Adhesive Best Practices: A Guide to Proper Application

Posted on by Ductmate Industries

Spray adhesives provide a fast and efficient way to bond materials during ductwork fabrication and installation. Proper application and precautions are important for achieving a strong, consistent bond.

Follow these best practices to help improve adhesive performance and produce more reliable results.

Preparing the Materials & Work Areas

Before applying spray adhesive, make sure the surfaces being bonded are clean, dry, and free of dust, dirt, oil, and other contaminants. Adhesive applied over a contaminated surface may stick to the debris instead of the material and weaken the bond.

The temperature of the adhesive, materials, and work area can also affect application. Always check the product’s technical data sheet for acceptable storage and application temperatures.

Before beginning:

    ✅ Confirm that the adhesive is compatible with both materials
    ✅ Clean and dry the application surfaces
    ✅ Protect surrounding areas from overspray
    ✅ Make sure the workspace has adequate ventilation
    ✅ Review the product label, technical data sheet, and safety data sheet

Correct Spray Techniques

✅ Hold the spray applicator at a consistent distance and angle from the surface.
❌ Spraying too closely can concentrate adhesive in one area, and spraying from too far away can create excess overspray and inconsistent coverage.

✅ Apply the adhesive with smooth, controlled passes. Keep the applicator moving at a steady speed and slightly overlap each pass to prevent gaps.
❌ Avoid uneven passes and missed areas, especially along edges and corners where material is more likely to lift.

✅ Consistent coverage is more important than simply applying more adhesive.
❌ A heavier application does not necessarily create a stronger bond.

Applying the Correct Amount of Adhesive

One of the most common application mistakes people make is using too much or too little adhesive. The goal is to achieve the coverage specified without oversaturation.

Too little adhesive can cause: incomplete coverage, loose edges, material separation, or premature bond failure.

Too much adhesive can cause: longer drying times, uneven bonding, trapped solvent or moisture, and unnecessary waste.

IMPORTANT: The correct amount of adhesive should cover 90% of the surface area of the duct board/metal. Thickness in mils is not specified, but you should use the minimum amount of adhesive necessary to securely hold the material in place prior to weld pinning.

The Ductmate Sales team is always available to answer questions and assist if needed; don’t hesitate to reach out!

Bonding Materials & Cure Time

Make sure the materials are properly aligned before they touch. Some adhesives develop an immediate bond, making repositioning difficult. Once aligned, apply firm and even pressure across the entire bonded surface. Pay particular attention to edges, corners, seams, and curved areas. If required, use a manufacturer-recommended roller to promote full contact and remove bubbles or wrinkles.

Initial tack does not always mean the adhesive has reached full strength. The bond may continue to develop after the materials are joined. Moving, bending, fabricating, or installing the bonded materials too soon can interfere with the curing process. Protect the assembly from stress and unsuitable environmental conditions for the full period specified by the manufacturer.

Choosing the Right Spray Adhesive

The correct adhesive depends on the materials being bonded, the fabrication process, and the conditions the finished assembly will experience. Water-based and solvent-based products may have different application requirements, drying characteristics, and safety considerations.

Before choosing an adhesive, consider material compatibility, application temperature, cure time, expected service conditions, coverage, VOC requirements, and applicable codes or specifications. Always confirm that the selected adhesive is approved for the intended application.

Ductmate offers a variety of spray-grade duct liner adhesives:

Gecko Glue Silver & Gold:

  • Sustainable Choice: The water-based formula offers an environmentally friendly alternative to solvent-based adhesives and is LEED-compliant, CDPH-compliant, low in VOCs, and UL-classified.
  • Industry-Leading Performance: Gecko Glue provides one of the fastest drying times among water-based adhesives, along with market-leading wet tack, strong dry tack, and a smooth finish.
  • Versatility for Different Duct Liners: Designed for a variety of duct liners and insulation materials, including PolyArmor, elastomeric, and fiberglass.
  • Cost-Effective Bulk Options: Available in 275-gallon totes that hold the equivalent of five 55-gallon drums, helping save storage space, reduce changeover time, and lower labor costs. The totes are also compatible with existing coil lines and standard drum-spraying equipment.

Gecko Glue Concentrate:

  • Reduced Costs: Gecko Glue Concentrate can be mixed on-site in just 10–15 minutes, helping reduce pre-mixed drum and shipping costs. The concentrate is also ideal for smaller projects or facilities with limited storage space.
  • Extended Product Life: Gecko Glue Concentrate offers an extended shelf life when stored unmixed and maintains a shelf life of 6–18 months after mixing.

Quick-Stick CA:

  • Fast, Strong Bond: The quick-tack, high-build formula provides aggressive initial grab and creates a strong, permanent bond in a single application.
  • Versatile Use: Designed for fiberglass, polyester, and elastomeric duct liners, Quick-Stick CA can also effectively bond foam, metal, and wood.
  • California Compliant: The methylene chloride-free formula complies with California SCAQMD Rule 1168, making it suitable for projects with strict adhesive requirements.
  • Low-Emission Formula: Low in VOCs and formulated without ozone-depleting substances or hazardous air pollutants for a more environmentally responsible option.
  • Convenient Formats: Available in self-contained cylinders for larger applications and portable aerosol cans for smaller projects, repairs, and touch-ups.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

What the Methylene Chloride Ban Means for the HVAC Industry

Posted on by Ductmate Industries

Federal restrictions on methylene chloride affect more than just paint strippers. The regulation also covers adhesives, sealants, removers, cleaners, and degreasers, including products used in commercial HVAC and ductwork applications.

For manufacturers, distributors, and contractors, the message is clear: a methylene chloride-containing product cannot continue to be sold or used simply because it is labeled for professional or industrial use. Most industrial and commercial uses are prohibited under the U.S. Environmental Protection Agency’s 2024 rule.

What Is Methylene Chloride?

Methylene chloride, also known as dichloromethane or DCM, is a volatile solvent. It was commonly used in sealants and adhesives because it evaporates quickly, dissolves many materials, and supports rapid bonding. It has also been used in coating removers, aerosol cleaners, metal degreasers, and specialty formulations.

The EPA determined that methylene chloride presents health risks from inhalation and skin exposure. These hazards are especially relevant to HVAC applications, where products may be installed in mechanical rooms, shafts, plenums, and other poorly ventilated areas. In enclosed spaces, rapid evaporation can create dangerous concentrations of chemical vapors.

Understanding the EPA Rule

The EPA’s final rule took effect July 8, 2024, under the Toxic Substances Control Act. It prohibits all consumer uses and most industrial and commercial uses of methylene chloride. The regulation generally applies to products containing 0.1% or more methylene chloride by weight.

The rule established a phased compliance schedule. Retail sales and manufacturing for prohibited use ended in 2025, followed by processing and distribution restrictions. As of April 28, 2026, most industrial and commercial uses are prohibited, even when a product was purchased before the deadline or remains in existing inventory.

Implications for the HVAC Industry

The EPA’s permitted uses do not include ordinary commercial HVAC duct sealing, insulation attachment, or equipment installation. A narrow extension through May 8, 2029, applies to adhesives and sealants used in aircraft, spacecraft, and turbine applications for structural and safety-critical purposes. It does not cover conventional ductwork, duct liner installation, insulation attachment, vapor-barrier repair, or general building air sealing.

For the HVAC industry, affected products may include duct sealants, contact and spray adhesives, gasket adhesives, insulation repair products, and certain cleaners or removers.

Switching from Quick-Stick HS to Quick-Stick CA

In February 2025, we proactively discontinued our Quick-Stick HS adhesive formulation and replaced it with our new, methylene chloride-free Quick-Stick CA.

Quick-Stick CA’s new, low-VOC formula complies with California’s SCAQMD 1168 regulations. It provides the same quick, high-tack, and permanent bond for all types of HVAC insulation, ensuring you can maintain the high quality you expect while using a safer, more environmentally friendly product without compromising on performance.

The new Quick-Stick CA formula is highly effective and has been well received; however, the product is flammable while wet. This flammability concern applies immediately after spraying while the adhesive remains in its wet state.

With previous products, users commonly applied too much adhesive, which resulted in delayed tack and curing. The new Quick-Stick CA formula requires only one simple, even pass, covering approximately 90% of the metal surface in accordance with the SMACNA standard. The specific amount of adhesive is not regulated and should be limited to the amount necessary to hold the insulation securely in place until it is pinned. After spraying, wait 30-60 seconds before applying the insulation. This allows the propellant to flash off. Quick-Stick CA is non-flammable once the product is dry.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

July 2026 Newsletter Recap: Safety You Can Sea (Shark Week Special Edition)

Posted on by Ductmate Industries

Safety You Can Sea: Cable Shark Cable Hanging System

Dive into Shark Week with Cable Shark!

The Cable Shark® Cable Hanging System delivers unparalleled strength, reliability, and safety you can “sea” with built-in load indicators and an easy-to-use Cable Shark load adjuster tool that ensures proper loading and safety every time for peace of mind.

Sink your teeth into safer installs with a system designed and engineered specifically to meet the unique demands and challenges of hanging commercial HVAC duct systems without leaving your crew in deep water.

With a variety of versatile accessories, site kits, and cable options, Cable Shark is ready to make waves on your next job!

CABLE SHARK CABLE HANGING SYSTEM & MORE

Mechanisms & Cable Options

The Cable Shark CS125 and CS250 lbs-rated systems consist of high-strength die-cast steel mechanisms and serrated jaws with precision-matched zinc-coated steel cable, resulting in cutting-edge cable hanging systems that meet the SMACNA upper and lower attachment standards, are ICC-ES AC284 Certified, and have an unsurpassed safety factor rating.

For the system to work properly, both components must be used together. The Cable Shark Mechanism uses two serrated steel wedges that allow the Cable Shark Cable to pass through in one direction. Then, when a load is applied to the Cable Shark Cable in the opposite direction, the wedges grip the Cable Shark Cable and press it against the Cable Shark Mechanism housing, preventing it from moving.

Cable options include 500’ and 1000’ spools and various cut-to-length options with attachments.

Site Kits

Cable Shark site kits contain everything you need for on-site installations, conveniently stored in a single bucket.

CS125 Site Kit includes:

  • CS125 Cable Shark Mechanism – QTY 200
  • CSW125500 500 ft Spool – QTY 2
  • HWRC Cable Cutter – QTY 1
  • CSDSTOOL Cable Shark Load Adjuster – QTY 1

CS250 Site Kit includes:

  • CS250 Cable Shark Mechanism – QTY 100
  • CSW250500 500 ft Spool – QTY 1
  • HWRC Cable Cutter – QTY 1
  • CSDSTOOL Cable Shark Load Adjuster – QTY 1

Accessories

Ductmate offers a wide range of high-performance brackets and accessories to be used in conjunction with the Cable Shark system for versatility on even the most challenging installations.

This lineup features Rectangular Duct Brackets, Round Duct Strap Brackets, Cable Shark Hanging Adapters, Pivoting Eyelets, ¼” Threaded Studs, 3/8” Threaded Stud, and Rectangular Duct Corner Saddles.

Load Adjuster Tool

The Cable Shark Load Adjuster ensures proper loading and safety every time for peace of mind.  Compact and user-friendly, the tool can be easily carried in a toolbelt or pocket.

Cable Cutters

Cable Shark Cable Cutters are high-quality cutters compatible with Cable Shark Cable that provide a clean cut with less effort.  Tin snips, diagonal cutters, and electrical cable cutters fray the end of the Cable Shark Cable and prevent it from sliding into the Cable Shark Mechanism correctly.

CS125/CS250 Certifications

  • SMACNA Testing and Research Institute Verification – Meets SMACNA’s upper and lower attachment construction standards if used per manufacturer’s installation guidelines
  • Seismic Certified to ANSI/ASHRAE Standard 171-2017
  • ICC-ES AC284 Certified (ESR-4742)
    • 2022 California Building Code Compliant
    • 2022 California Residential Code Compliant
    • 2022 California Mechanical Code Compliant
    • 2023 County of Los Angeles Building Code
    • 2023 County of Los Angeles Residential Code
    • 2023 County of Los Angeles Mechanical Code

* Certifications apply to the CS125 and CS250 mechanisms only

*IMPORTANT DISCLAIMER: The Cable Shark Cable Hanging System consists of Cable Shark Cable and the Cable Shark Mechanism. For the system to work properly, both components must be used together. Before using or installing the product, read and follow all product information and warnings. Do not use the product in a manner that is inconsistent with the manufacturer’s printed information. Ensure that all employees installing the Cable Shark System have been properly trained on using this product. RESPONSIBILITY FOR THE PROPER AND SAFE USE OF THE CABLE RESTS WITH THE USER.

LIMITED TIME CABLE SHARK PROMOTION

Take 10% off Cable Shark with the promo code SHARKWEEK26 from July 27 through August 31, 2026, during this limited-time promotion!

*Market restrictions may apply.

TRADITIONAL HANGERS

Ductmate offers a variety of traditional hangers that are cost-efficient, easy to use, and require no prep work, making ductwork installation easier, faster, and safer.

Pre-Punched Trapeze Duct Hanger

The Pre-Punched Trapeze Duct Hanger is a specialized duct support channel designed to support rectangular and oval ductwork. Made from 18-gauge galvanized steel and measuring 2″ high x 1.5″ wide, this lightweight and easy-to-cut product arrives at the job site in 20-foot lengths, pre-punched with oval holes at 2-inch intervals for immediate use.

Its versatile design eliminates the need for hard-to-cut and punch-angle iron, and it can be standardized to replace multiple hanger types, thereby potentially reducing inventory costs. The hanger’s neat, professional appearance is complemented by the option to insert heavy neoprene gaskets for sound isolation, and it can be secured to structural members up to 1.5 inches thick using its beam clamp.

Isolation Hanger Type SI

The Isolation Hanger Type SI is a sturdy, vibration-isolating steel hanging bracket featuring a rubber isolation pad, designed for use with threaded rods to suspend ductwork and other equipment, isolating vibration at its source.

Capable of supporting up to 1100 lbs (499 kg), the sturdy tension brackets have a much greater load-bearing capacity than the corresponding threaded rods.  Its styrene-butadiene rubber padding isolates vibration at its source, preventing distracting noise transmission and extending the lifespan of HVAC equipment by reducing wear and tear. The outside dimensions match standard wrench sizes, so no special tools are required, making installation easy. The open space of the bracket corresponds to the width of the nut, preventing it from turning.

Round Duct Hanger

Install your round ductwork quickly and effortlessly with our Round Duct Hanger. This prefabricated hanger features a ¼” x 20 carriage bolt with a zinc-plated wing nut and lock washer for secure, tool-free installation. Available in a range of sizes from 3” to 10” in 1” increments and 12” to 34” in 2” increments to perfectly fit your ductwork. Constructed from durable 20-gauge galvanized metal for long-lasting performance.

Round Duct Strap Bracket

Our versatile Round Duct Strap Bracket supports ductwork up to a generous 50” diameter. Designed to accommodate 1” wide strapping in gauges 18-22, it offers flexible installation options. Easily attach your preferred hanging system with compatibility for Cable Shark Hanger Adapters, 3/8” and 5/16” rods, or eyebolts. This bracket is a crucial component for secure and efficient ductwork suspension when used in conjunction with strapping and your chosen hanging method.

Hanger Strap

Our versatile Hanger Strap makes it easy to tackle hanging ductwork. Available in convenient boxes, bundles, or coils and in galvanized and stainless-steel options, this essential component is perfect for even the most challenging installations.

Vinyl Duct Strapping

Quickly and easily secure your flexible or lightweight ductwork with our Vinyl Duct Strapping. This strong, all-purpose fabric is perfect for small-scale installations, and its durable construction ensures reliable support for hanging your ductwork.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!

June 2026 Newsletter Recap: Safer by Design (Solutions for National Safety Month)

Posted on by Ductmate Industries

Safer by Design: Solutions for National Safety Month

Safety starts with the right products.

National Safety Month is observed annually in June to increase awareness of the leading causes of preventable injuries and deaths. Established by the National Safety Council (NSC) in 1996, the month is dedicated to keeping people safe from the workplace to anyplace.

This National Safety Month, we’re spotlighting Ductmate products engineered to be safer by design—whether that means safer handling during installation, dependable access for inspections, or components that support fire and life safety applications.

FEATURED PRODUCTS

ULtimate Access Doors

Design and engineering choices when choosing a grease duct access door can mean the difference between life and death for building occupants and first responders.  When life safety and building performance are your number one priority, Ductmate’s ULtimate™ grease duct access doors are superior to the competition.

Our ULtimate grease duct access doors provide easy access to high-temperature air ducts and grease duct systems and were designed for applications requiring UL 1978 listing. Unlike shop-fabricated and inferior, light-gauge grease duct door substitutes, this high-performance lineup is designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

Included in this lineup are: ULtimate Door (Sandwich-style), ULtimate Door Round (Sandwich-style for round duct), and ULtimate Door II (weld-on).

Interested in learning more? Click here to read our “ULtimate Door Lineup: Performance, Safety, and Options That Matter” article.

Cable Shark

Our innovative, next-generation Cable Shark® Cable Hanging System is designed and engineered specifically to meet the unique demands and challenges of hanging commercial HVAC duct systems. With unparalleled safety, strength, and reliability, the Cable Shark mechanisms feature an advanced design that includes exclusive built-in load indicators and an easy-to-use load setter/adjustment tool. This helps ensure each system is properly engaged, providing added protection and peace of mind that you and your clients deserve.

A wide range of high-performance accessories are available to be used with the Cable Shark system for versatility on even the most challenging installations, featuring site kits, pivoting eyelets, bracket adapters, rectangular/round duct hanger brackets, studs, and a wide range of cut-to-length cable options with attachments and in 500’ and 1000’ spools.

Neoprene Gasket Tape

Neoprene Gasket Tape is a synthetic, closed-cell, and rubber-based duct sealing tape ideal for ensuring a firm, reliable, and long-lasting airtight seal in round and flat oval ductwork.

Its pressure-sensitive adhesive backing allows for quick and easy installation. The durable nature of neoprene foam makes it simple to remove from ductwork without leaving a sticky residue or falling apart. This makes disassembling ducts for periodic cleaning or maintenance easier, allowing for a quick and straightforward application of new tape to reseal the connection.

Neoprene is commonly used in breakaway duct connections to help seal the joint between mating duct surfaces while allowing the connection to function as intended. In the event of a fire, the breakaway connection is designed to release or separate so the damper assembly can operate as specified, while the gasket tape serves only as a sealing component within the connection. As with any duct connection, installation should follow applicable project specifications, manufacturer instructions, and code requirements.

INDUSTRY NEWS & MORE

GreenSeam Plus: The Latest Innovation In Jobsite Safety

The GreenSeam Plus factory-sealed pipe and fittings system helps contractors tackle one of construction’s biggest safety risks: ladder-related injuries. By reducing the installation time spent off the ground, this solution helps crews work safer, faster, and at a lower overall installed cost.

Click here to learn more about this innovative solution.

Building Safety Starts Before an Emergency: Aire Technologies’ Life Safety Products in Action

Building safety starts long before an emergency—it depends on systems working behind the scenes to help slow the spread of fire, smoke, and heat when every second matters. See how Aire Technologies’ life safety products support fire-rated assemblies, protect critical openings, and help give occupants more time to exit safely in the event of a fire.

Click here to read the full article.

Removable & Breakaway Connections Available for Rectangular Flange Connection Systems

Ductmate offers removable and breakaway connections for rectangular flange connection systems.

Interested? Click here to learn more.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!

ULtimate Door Lineup: Performance, Safety, and Options That Matter

Posted on by Ductmate Industries

Design and engineering choices when choosing a grease duct access door can mean the difference between life and death for building occupants and first responders.  When life safety and building performance are your number one priority, Ductmate’s ULtimate grease duct access doors are superior to the competition.

What are the ULtimate Doors?

Ductmate’s ULtimate access doors provide easy access to high-temperature air ducts and grease duct systems and were designed for applications requiring UL 1978 listing.

Ductmate offers the ULtimate Door (sandwich-style), ULtimate Door II (weld-on), and the ULtimate Door Round (sandwich-style for round duct) that provide the following special characteristics:

  • UL 1978 listed
  • Superior life safety protection
  • Minimal penetration into the duct
  • Grease and liquid tight
  • Meets NFPA96 standards
  • Dramatically reduces installation time
  • 11 ga. 304SS or Black Iron
  • ICC tested with leading wraps
  • No special tools required
  • Quick and easy access

Unlike shop-fabricated and inferior, light gauge grease duct door substitutes, the high-performance line of ULtimate Grease Duct Access Doors from Ductmate are designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

Why make your job more difficult?

The ULtimate Doors are designed to save you time and money without compromising safety.  The sandwich style of the ULtimate Door and ULtimate Door Round allows them to be completely removed or installed in minutes.  No frames to install, no holes to drill, and no clips needed, dramatically reducing field installation time and labor.

When working in the field, time is money, so why make your job more difficult than it has to be? Use the access doors that keep you safe and don’t waste your time.

Can I customize my order of ULtimate Doors?

Ductmate can custom make virtually any size ULtimate Door, starting at 6” x 6” all the way up to 24” x 24”. Consult Ductmate customer service for more information.

Additionally, the ULtimate line of access doors can be ordered in stainless steel or black iron and several optional design features for virtually any configuration.

As always, we’re happy to work with you to deliver the products you need.

Where can I buy the ULtimate Doors?

Ready to buy the ULtimate Doors? Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

May 2026 Newsletter Recap: Explore Videos, See Solutions & Subscribe

Posted on by Ductmate Industries

Explore Videos, See Solutions & Subscribe

Looking for product insights, installation resources, and helpful tips? Don’t miss out! Explore the latest videos, see solutions, and subscribe to Ductmate on YouTube @DuctmateIndustries.

Want even more Ductmate? Follow us on our Facebook, Instagram, and LinkedIn social media accounts to stay up-to-date with the latest news!

FEATURED VIDEOS

Ductmate Flange Systems Installation Video

Learn the ins and outs of the Ductmate ‘25’/’35’/’45′ self-sealing rectangular flange connector systems with this comprehensive component guide and step-by-step installation video.

.

Rapidmate: Rapid Loading, Rapid Connections, Rapid Savings

The Rapidmate Corner lineup is the most advanced, labor-saving corner system in the industry. Rapid loading + rapid connections = rapid savings!

.

Spiralmate Installation Video

Learn the specific assembly and installation procedures for the Spiralmate self-sealing round duct connector system in this comprehensive installation video.

.

Cornermatic Strap-Pak Corners: Speed That Drives Your Business

Cornermatic Strap-Pak Corners reload at least three times faster than traditional corner packaging, reducing both loading time and lost production time. Simply load and watch your savings stack up!

.

PolyArmor Duct Liner Insulation

PolyArmor polyester duct liner insulation has emerged as a superior alternative to traditional insulation materials, offering a compelling blend of performance, installation, and environmental benefits.

.

Gecko Glue Concentrate Vortex Mixer Operation Instructions

Gecko Glue Concentrate is our patented duct liner adhesive formula available as a 54-gallon mix. The concentrate can be mixed on demand by simply adding water to the ingredients and mixing with a custom-made, highly efficient docking station system.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

April 2026 Newsletter Recap: Earth Day, Every Day

Posted on by Ductmate Industries

Earth Day, Every Day: Promoting Energy Efficiency Since 1978

At the height of a worldwide oil crisis in the 70s, Ductmate’s founder sought a better solution, bringing innovation to the forefront with the Ductmate ‘35’ system to deliver energy and material savings and forever changed how contractors and engineers viewed ductwork accessories.

DM ‘35’, followed by its twin DM ‘25’, revolutionized the industry and paved the way, expanding our line of products to include leak-free connection systems for round and oval ductwork, energy-efficient access doors, turning vane systems, and more.

Today, it’s not just our products that are sustainable, but sustainability has become a part of everything that we do, from our operations to our personal conduct.

For Ductmate (part of DMI Companies), Earth Day doesn’t just come once a year on April 22—it’s every day.

FEATURED PRODUCTS

Duct Connectors

Ductmate offers a wide range of high-quality and versatile duct connectors for rectangular, round, and oval ductwork. Engineered with self-sealing technology, our connectors improve structural integrity while making installation faster and easier. From premium solutions to cost‑effective options, we provide high-quality connectors to suit any project and budget.

DM ‘25’/’35’/’45’ Connector Systems

The DM ‘25’/‘35’/‘45’® self-sealing rectangular flange connector systems provide a simple and reliable method for connecting rectangular duct that prioritizes airtightness, strength, and installation efficiency when a rigid, leak-free connection is required—ideal for projects ranging from commercial HVAC to demanding industrial and mega‑project environments (data centers, processing plants, transit, arenas, and more).

Backed by rigorous testing and our industry-leading guarantee, this superior solution not only saves you time, money, and effort but also ensures exceptional performance, making your operations more efficient and cost-effective.

The system features precision-engineered components for seamless assembly and a strong, leak-free connection:

  • Roll-formed Flanges with Integral Mastic: Ensure a tight seal against the duct wall for a superior, leak-free connection. Integrated mastic eliminates the need for separate sealant applications, saving time and labor during assembly.
  • Corners: Reinforce the ductwork structure to hold everything together securely and provide a dedicated sealing surface for the gasket, further optimizing the system’s airtight integrity.
  • Gasket: Forms a vital barrier between the flanges to prevent air leaks and ensures optimal airflow within the duct system.
  • Cleats (Versa-Cleat or Bolt-On): Guarantee consistent compression and secure, efficient assembly, even on large duct spans.

All DM systems are available in a variety of specialty metals.

Spiralmate & Ventmate Round Connector Systems

Sold as a complete set, Spiralmate®  is a three-piece, self-sealing round duct connector system featuring a one-bolt closure band, providing an innovative and cost-effective solution for fast, safe, and aesthetically pleasing airtight connections.

Beyond innovative design, Spiralmate offers clear advantages over traditional round connector systems. Its engineered simplicity results in a lower overall installed cost, as the complete system eliminates the need for purchasing separate components, sealants, and additional labor. Its unique one-bolt closure band not only speeds up the installation process and reduces potential leakage, but also enhances worker safety by removing labor-intensive and time-consuming screw applications. Eliminating unsightly screws and sealant creates a clean, seamless connection, ideal for architectural applications on exposed duct systems.

Spiralmate is available in standard sizes ranging from 8” to 72” in 2” increments and in six different alloys with or without mastic for a range of specialty applications. Consult Customer Service for additional sizes and 1” increments. To simplify double-wall installation, press-on inner rings are available, featuring a double-sided pressure-sensitive adhesive to remove the need for costly welding.

For specialized applications, such as underground mining or tunneling, our Ventmate alternative features the same integral sealant and neoprene gasket embedded into a wider closure band to enhance the airtight seal where flush connections are not possible.

Formulated Products

Sealants

Our sealants are formulated to provide exceptional performance for both indoor and outdoor applications. They are uniquely designed and formulated to address common challenges, such as mildew resistance, meeting stringent UL specifications, and maintaining flexibility even in demanding conditions.

Alongside excellent adhesion to metal, our sealants have a lower brush drag, resulting in better spreadability and allowing for a more even and consistent coating, ensuring an airtight, leak-free seal.

PROseal & FIBERseal
  • Premium Formulation: PROseal® and FIBERseal® are high-velocity duct sealants that use premium polymers in their formulation.
EVERseal & EZseal
  • Commercial Grade Formulation: EVERseal™ and EZseal® are cost-effective, commercial-grade, water-based duct sealants used to seal metal joints against air leaks in low, medium, and high-pressure duct systems.
PROseal Spray
  • Ideal for Shop Applications & Large Projects: With PROseal Spray, you can quickly spray on the sealant instead of applying it with a brush, resulting in significant labor savings.
  • Works With a Wide Variety of Equipment: PROseal Spray works easily with a wide variety of equipment (contact Ductmate customer service for more information).

Adhesives

Our adhesives are formulated to deliver strong, long-lasting bonds that can withstand temperature fluctuations, vibrations, and pressure changes within HVAC systems.

Gecko Glue Gold & Gecko Glue Silver
  • Sustainable Choice: Gecko Glue™ Gold and Gecko Glue Silver are water-based adhesives that offer an environmentally friendly alternative to solvent-based options. They are LEED-compliant, CDPH-compliant, Low in VOCs, and UL-classified.
  • Industry-Leading: Gecko Glue has one of the quickest drying times in the industry for a water-based adhesive. It also has a market-leading wet tack, strong dry tack, and smooth finish.
  • Versatility for Different Duct Liners: Gecko Glue works well with various duct liners and insulation materials, including PolyArmor, elastomeric, and fiberglass.
  • Cost-Effective Bulk Options: Consider Gecko Glue totes for large projects. One 275-gallon tote holds the equivalent of five 55-gallon drums, saving on storage space and costs. They’re also easier to handle and reduce changeover time, leading to labor savings. Additionally, Gecko Glue totes are compatible with existing coil lines and sprayers used with standard drums.
Gecko Glue Concentrate
  • Reduced Costs: Gecko Glue Concentrate allows you to mix the adhesive on-site in just 10-15 minutes, saving on pre-mixed drum costs and shipping expenses. This is a good option for projects requiring smaller quantities or those where storage space is limited.
  • Extended Product Life: Gecko Glue Concentrate has an extended shelf life when unmixed and a 6-18 month shelf life after mixing.
PolyArmor Duct Liner Insulation

Our PolyArmor™ polyester duct liner insulation has emerged as a superior alternative to traditional insulation materials, offering a compelling blend of performance, installation, and environmental benefits.

  • Fiber-Free and Safe: PolyArmor eliminates fiber shedding and does not break down in the airstream, creating a cleaner and healthier indoor environment.   Its polyester material is soft and hypoallergenic, eliminating irritation during handling that you would typically experience with fiberglass insulation.
  • Superior Moisture Resistance: PolyArmor’s polyester construction provides exceptional resistance to moisture and condensation, minimizing the risk of mold growth.
  • Easy Installation: Designed for ease of installation, PolyArmor reduces labor costs and installation time, with its flexible nature allowing it to conform to any duct shape.
  • Enhanced Thermal Performance: PolyArmor provides industry-leading R-values/thermal resistance, contributing to increased energy efficiency and reduced system load.
  • Durability and Longevity: PolyArmor is engineered from strong and safe polyester that is webbed into a thermal blanket, which is then bonded with an extremely durable FSK-facing that reduces damage during fabrication, operation, and cleaning.
  • Environmental Benefits: Made with environmental sustainability in mind, PolyArmor is manufactured from 25% recycled content.

INDUSTRY NEWS & MORE

GREENGUARD Gold Certified Products

Proven to comply with the world’s strictest and most comprehensive standards for low-VOCs, a variety of Ductmate’s water-based sealants, adhesives, and encapsulating edge coatings are GREENGUARD Gold Certified.

Click here to learn more.

Ductmate & AMS Partnership to Build Gen7 Concept House

Ductmate partnered with AMS on the River Vine Gen7 Concept House to supply sustainably made, high-efficiency products crucial to achieving LEED Platinum and zero-net-energy goals.

Click here to learn more about the project.

DMI Secures Fourth ENERGY STAR Certification

Increased energy efficiency was made possible for DMI Companies’ historic corporate office building through Airoverse building automation, cutting energy use by 13.5%, and earning its fourth ENERGY STAR certification in 2025.

Click here to read the full article.

DMI Companies’ GBA Profile: Sustainability Is In Our DNA

DMI Companies continues to apply cutting-edge technology and waste-reduction strategies to shape a new era of manufacturing where efficiency, sustainability, and technological advancement converge. With achievements spanning multiple locations, DMI continues to demonstrate measurable results and sustained commitment to modernizing how it operates.

Interested in learning more? Click here to read the full article.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!

March 2026 Newsletter Recap: The Right Access Door for Any Job– Every Time

Posted on by Ductmate Industries

The Right Access Door for Any Job– Every Time

Ductmate’s access doors make inspection, cleaning, and maintenance faster and easier.

Many of our doors are designed for quick installation with time-saving features such as self‑adhesive cut templates, no frames to install, and effortless opening/closing that doesn’t require special tools, helping you to save time in the field.

Whether you’re working with rectangular or round ductwork, our variety of Sandwich®-style, ULtimate™, and square-framed access doors ensures you’ll have the right access door for any job– every time.

Sandwich-Style Doors:

Sandwich-style doors are available in insulated and uninsulated options. They are extremely versatile and can be used for a wide range of applications, including high-temperature applications, duct cleaning, or viewing ultraviolet lights in air handling units.

Our Sandwich-style doors include: Rectangular Duct Sandwich Door, Round Duct Sandwich Door, F1-High Temp Sandwich Door, F2 Grease Duct Sandwich Door, Observation Sandwich Door, Single-Pane Sandwich Observation Door, AHU Viewport Access Panel, Clean-Out Sandwich Door, and Circular Clean-Out Sandwich Door.

UL-Listed ULtimate Doors:

Our ULtimate grease duct access doors provide easy access to high-temperature air ducts and grease duct systems and were designed for applications requiring UL 1978 listing. Unlike shop-fabricated and inferior, light-gauge grease duct door substitutes, this high-performance lineup is designed to meet the challenges. They are the most extensively engineered, tested, and ruggedly constructed doors available in the industry.

Included in this lineup are: ULtimate Door (Sandwich-style), ULtimate Door Round (Sandwich-style for round duct), and ULtimate Door II (weld-on).

Design and engineering choices when choosing a grease duct access door can mean the difference between life and death for building occupants and first responders.  When life safety and building performance are your number one priority, Ductmate’s ULtimate grease duct access doors are superior to the competition.

Square-Framed Doors:

Square-Framed access doors are a low-pressure door for rectangular ducts that provide easy access to air ducts and units. Developed as an inexpensive alternative to our Sandwich-style access doors for low-pressure applications, Square-Framed doors meet SMACNA requirements for low-pressure doors. They are insulated with 1” high-density fiberglass insulation and are double gasketed with a closed-cell, cross-linked polyethylene gasket.

Square-framed doors are available with tab-in or press-on style frames, both designed to ensure quick and easy installation. Our square-framed doors include: Hinge & Cam Square-Framed Door, Cam Latch Square-Framed Door, and High-Pressure Cammed Square Framed Door.

All tab-in frames are manufactured with fastened corners for increased strength and feature an improved dovetail design for metal duct, 1” duct board, and 1 ½” duct board. Press-on frames include a durable double-sided adhesive gasket, allowing for easier and safer installation on metal ductwork.

For high-pressure applications, our all-cam tab-in version is also available in a high-pressure square frame door, with a pressure rating of -10”/+10” w.g.

MORE FEATURED PRODUCTS

Moisture Drain

Our Moisture Drain provides a reliable, cost‑effective solution for managing unwanted moisture in ductwork and drain pans, helping to prevent leaks, corrosion, and potential system damage.

Designed for fast and easy installation, the drain forms a leak‑proof connection that efficiently directs collected moisture away from the duct system. Its unique funnel design draws the surrounding duct area inward, ensuring consistent and complete drainage even in the most challenging moisture conditions.

Circular Clean-Out Sandwich Access Doors

Our Circular Clean-Out Sandwich access doors are designed for professional duct cleaners who need quick, clean, repeatable access to ductwork and air handling units without the time-consuming steps and messy finishes of traditional clean-out methods. Offered in 8″, 10″, and 12″, this door is precision-built to be a perfect fit for securing the metal vacuum-hose adapter, helping crews set up faster and work more efficiently.

Installation is simplified without the need for metal plates, drilling screws, tape, or sealant, resulting in less labor, fewer reworks, and no duct distortion from re-drilling. Simply cut the opening, insert the door at an angle, and hand-tighten the wingnuts for a neat, professional appearance and easy access every time. It’s one of the smartest and most cost-effective doors in our lineup.

INDUSTRY NEWS & MORE

Hollow Block Kits for Hurricane Air Brace Now Available

Hollow block installation kits are now available for Hurricane Air Brace installation and mounting on hollow concrete block. Ordering information can be found on the product page or spec sheet.

Using Fire Wrap Systems With Ductmate Access Doors: Ordering & Modification Guide

While Ductmate doesn’t sell fire wrap, it is commonly used with some of our access doors. This guide breaks down what Ductmate access doors pair with common fire wrap systems, including what to order, what to specify up front, and the simple door modifications that will help you to install wrapped ductwork with less hassle.

Want to learn more? Click here to read the full article.

Clean HVAC Preventative Measures & Ductmate Solutions You Can Clearly See

Ductmate’s solutions show how our smart, preventative solutions help facilities maintain healthier indoor air quality with confidence. Originally designed for hospitals and healthcare, our Observation Access Doors enable clear, safe visual inspection of filtration systems and UV technology without disrupting airflow or system integrity. With durable construction, high‑impact safety glass, and a leak‑free, pressure‑rated design, these solutions make it easy to demonstrate a visible commitment to clean, well‑maintained HVAC systems.

Click here to read the full article.

Customize What Matters: Ductmate Access Door Options Built Around Your Requirements

When a job requires solutions beyond standard sizes and configurations, Ductmate offers flexible ordering options to help you get the right access door for the application. From custom dimensions to insulation, bolt modifications, and specialty alloys, these choices make it easier to meet your job requirements.

Ready to explore your options? Click here to read the full article.

UPCOMING EVENTS

NADCA Annual Meeting & Expo

March 23-25, 2026 | Colorado Springs, CO

NADCA’s 37th Annual Meeting & Expo will bring together industry professionals involved in the inspection, cleaning, and restoration of HVAC systems.

Attending the show? Be sure to stop by to see us at booth #413!

IKECA Annual Meeting & Expo

April 15-17, 2026 | Indianapolis, IN

IKECA’s Annual Membership Meeting & Expo brings together industry professionals involved in the commercial kitchen cleaning industry who are committed to fire prevention and life safety.

Ready to Buy?

Ductmate products are available at over 350 locations across the US as part of a selective distribution network.  Use the Ductmate distributor locator map to find a distributor near you.

Outside the US? Check out our international distributor list.  For detailed information on product availability, lead times, or other international sales requests, please email ductmate@ductmate.com.

Sign up for Ductmate’s e-Newsletter

Don’t miss our monthly e-newsletter!  Click here and sign up to receive exclusive Ductmate news and announcements, product information, promotions, industry news, and more, right in your inbox.

Connect With Us on Social Media

Follow Ductmate on our Facebook, Instagram, LinkedIn, and YouTube social media accounts to stay up-to-date with the latest news!