GE Paintable Supreme Silicone Window and Door sealant is a 100% waterproof caulk that can provide a reliable seal in weather-prone areas such as windows, doors, basements, roofs, sidewalks, siding, tuckpointing, and attics. This caulk also has a 30-minute rain-ready formula and resists stain-causing mold and mildew growth. Our 100% silicone sealant offers 40% more flexibility than class 25 sealants and 7x stronger adhesion than our Silicone 1 sealant. Plus, it offers 50% joint-movement capabilities without cracking, shrinking, breaking down, or washing away. GE Paintable Supreme Silicone Window and Door caulk is paintable to fit in with your home's surroundings and has a low odor that's ideal for interior applications. It will not discolor most high-end metal finishes such as chrome, bronze, and nickel. Color: White.