GE Gutter sealant is a high-performance, 100% silicone and 100% waterproof sealant that is ideal for use on metal and vinyl gutters. This versatile sealant is also suitable for other exterior applications such as siding, down spouts, and vents. Our 30-minute rain-ready formula offers permanent flexibility and excellent durability, and it comes with a 10-year mold-free product protection to keep mold and mildew growth in check. Plus, our gutter sealant is tough enough for your outdoor jobs since its resistant to freezing, shrinking, cracking, and sunlight. GE Gutter Silicone Sealant provides the absolute best leak protection and saves you time and money on repairs and new installations. It adheres to wet and dry surfaces, including PVC, wood, aluminum, copper, vinyl, asphalt, concrete, cement, and more.