PL400, 10 OZ, Heavy Duty Subfloor Adhesive, Interior/Exterior, High Performance, Bonds To Wood, Metal, Concrete & Masonry, Can Be Applied To Frozen Lumber, Unaffected By Wood Contraction & Expansion, Eliminates Nail Pops & Squeaks, Waterproof/Weatherproof, Exceeds All Requirements Of American Plywood Association Afg-01, ASTM C 557-73, ASTM 3498 & Fahd Um60.