Red Devil 12 oz. Triple Expanding Polyurethane Foam Sealant

The Red Devil 12 oz. Triple Expanding Polyurethane Foam Sealant is a versatile insulating foam designed to quickly and easily fill large holes, gaps, and voids around windows, doors, pipes, outlets, vents, and foundations. Expanding up to three times its original size, it forms an airtight, waterproof bond that effectively stops drafts, locks out moisture, and prevents insect and pest infiltration. Suitable for both interior and exterior applications, this polyurethane sealant cures into a durable barrier that can be trimmed, sanded, painted, or stained to blend seamlessly with surrounding surfaces. Formulated without HCFCs or CFCs, it provides reliable weatherproofing and thermal insulation while remaining environmentally safe.