DAP HVAC Professional 100% RTV Silicone Sealant 10.3-fl oz Clear Duct Sealant

High performance sealant designed especially for HVAC applications. Provides a long lasting weather resistant seal with supreme adhesion, flexibility, and durability. Adheres to most common building materials and remains flexible from -40°F to 475°F. Ideal for caulking and sealing air conditioners, ducts, furnaces, refrigerators, aluminum siding, and flanged pipe joints.