Dap HVAC Silicone 100% RTV Silicone Sealant 10.3 oz

High-performance sealant designed especially for HVAC applications. It provides a long-lasting, weather-resistant seal with supreme adhesion, flexibility, and durability. It adheres to most common building materials and remains flexible from -40 to 475F. Meets Fed. Spec. TT-S-00230 C Class A, TT-S-001543 A Class A, ASTM C920, Class 25, FDA Reg. No. 21 CFR 177, 2600 when fully cured. Safe for incidental food contactNSF Certified.