GE Metal Silicone 2 Sealant is a high-performance, 100% silicone and 100% waterproof sealant ideal for a wide range of metal projects. Common uses include repairing and sealing sheds, siding, gutters, RV parts, home and camper roofs, and vents. This formula offers excellentadhesion and permanent flexibility; it also has a 10-year mould-free product protection to keep mold and mildew growth in check. Our durable metal sealant is resistant to shrinks and cracks, and it’s 30-minute rain-ready for all your exterior jobs. GE Metal Silicone 2 Sealant adheres toboth wet and dry surfaces, including stainless steel, aluminum, copper, composites, brick, stone, stucco, concrete, cement, and more. It’s also easy to use since it’s tack-free in 30 minutes and fully cures in just 24 hours.