DAP DRAFTSTOP 812 26 Oz. Low Pressure Polyurethane Door & Window Foam SealantLow pressure polyurethane foam designed to fill gaps between fenestration products and rough openings. Will provide an airtight seal and protect against water, air and sound intrusion. Non rigid, highly elastic foam has 30% joint movement capability which resists cracking and accommodates movement and settlement to maintain an airtight, weatherproof seal. Closed cell foam will not absorb water, warp or deflect window or door frames. Bonds to vinyl,