GE Silicone 2+ Window & Door Caulk, 10.1 Oz. Tube, Clear, GE5000 GE 100% Silicone is 100% waterproof and 100% weatherproof 30-minute exposure to rain and water Ideal for exterior weatherproofing and sealing projects including windows, doors, siding, trim, and around vents, wire and pipes Exceeds ASTM C920 Class 25 specifications Permanently flexible to keep gaps sealed, shrink-proof and crack-proof Will not break down due to extreme weather conditions, freeze-proof and sun-proof 10-year mold-free product protection is resistant to stain-causing mold and mildew growth Sealant adheres to more surfaces including metal, masonry, ceramic tile, laminates, glass, porcelain, granite, plastic and wood Will not discolor high-end metal finishes such as chrome, bronze and nickel Excellent adhesion for wet and dry applications