This water-based fiber-reinforced duct sealant/mastic seals low, medium and high-pressure HVAC duct systems. Meets U.L. Class 1 rating and local codes while featuring long term flexibility and strength.
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FIBER-REINFORCED WATER BASED DUCT SEALANT MASTIC
Product Details
Mfg#: 800-009
Use on metal heating, ventilating and A/C duct systems; as well as fiberglass duct board systems and flex duct systems.
Pro-air duct sealant UL 181
Recommended for use to 10 in. of water column pressure without the need for fiberglass mesh reinforcement