Cured sealant is mold and mildew-resistant.
Window, Door & Trim Sealant, 10.1 oz, Cartridge, Brown, Latex Base, 12 PK Exceeds federal specification TT-S-00230c, type II, class A and ASTM C920 specifications, Class 25. Waterproof and paintable. Provides permanently flexible, crack-proof seal.