A high quality, fiber reinforced duct sealant/mastic that is UL 181 a-m & b-m certified and can be used on all types of HVAC ductwork.

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Product Review

A high quality, fiber reinforced duct sealant/mastic that is UL 181 a-m & b-m certified and can be used on all types of HVAC ductwork.

  • SUPERIOR SEALING: Fiber-reinforced formula ensures leak-free HVAC systems, improving energy efficiency and performance
  • VERSATILE APPLICATION: UL 181 A-M & B-M certified for use on all types of HVAC ductwork, including metal, fiberglass, and flexible ducts
  • INDOOR/OUTDOOR DURABILITY: Weather-resistant sealant withstands various conditions, making it ideal for both interior and exterior use
  • FAST-DRYING & LOW VOC: Quick application and reduced drying time, with low volatile organic compounds for safer use in sensitive environments
  • EXCEEDS INDUSTRY STANDARDS: Surpasses all SMACNA Pressure and Sealing Classes, ensuring top-quality performance for your HVAC systems

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