DAP 100% Silicone Window, Door & Siding Sealant is an all-purpose, one component, acetoxy cure sealant ideal for indoor/outdoor use. It provides a watertight, flexible seal that won't crack, crumble or shrink. Once cured, it is unaffected by temperature extremes (-4°F to 4°F). When tested in accordance with ASTM C719, meets C92 specification for Class 25, Uses G & ASuperior quality, multi-purpose sealant. Offers long-lasting flexibility and excellent adhesion. Provide a weatherproof, watertight seal. Resists cracking, crumbling and chalking. Interior/exterior use. 50 year durability guarantee. Meets federal specification TT-S-001543A, class A.DAP® 100% Silicone Rubber Sealant, 10.1 oz Cartridge, Clear, Paste