Ductmate : FIBERseal®

Our Products


Basic Use

To seal metal and metal joints against air leaks in low, medium, and high pressure duct systems.

Product Spec Sheets Material Safety Data Sheets


FIBERseal is premium quality, high velocity, water-based duct sealant with fiber reinforcement.

Special Characteristics

  • UL 181B-M Listed
  • UL 723 Classified
  • Conforms to requirements of NFPA 90A & 90B
  • Qualifies for LEED® Credit EQ 4.1
  • Permanently flexible
  • Non-flammable
  • Exceptional workability
  • Will not drip or sag
  • Low brush drag & spreadability reduces labor cost
  • Low shrinkage
  • Excellent adhesion to metal
  • Mild odor
  • Indoor or outdoor use
  • Superior sealing strength
  • Mildew resistant
  • Paintable – latex or epoxy paints
  • For applications up to 15” w.g.
  • Manufactured by SMWIA Local 12
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