Expandable Insulating Foam Sealant Aerosol

A unique one-part urethane foam which expands as it dries and solidifies. Fills cracks and holes that caulk can’t! Sprays as a liquid then expands and cures to a durable semi-rigid closed cell foam insulation. Forms a water-resistant, weather-resistant and airtight bond on masonry, wood, metal, glass, tile and most plastics. Dries tack free in 5 minutes. Cures completely in 8 to 24 hours, depending on humidity.