Premium window, door and siding 100% silicone rubber sealant is a one-component, neutral cure silicone that cures to a tough, rubbery solid. It is shrink and crack proof and provides outstanding durability and flexibility for a long-lasting, 100% waterproof and weatherproof seal. It is rain ready in just 30 minutes without washing out. Cured sealant is mold and mildew resistant and is low in odor. It is ideal for a wide variety of interior and exterior applications such as sealing around windows, doors, siding, trim, pipes, vents and ducts and offers a liifetime guarantee. It is for interior/exterior use and meets ASTM C920, class 25.