Duct Sealers

TremPro® 640 Polyurethane Coating

• 1-Part liquid polyurethane coating for industrial use
• Used to create a tough, adherent waterproof coating
• Sprayable or brushable
• Primarily for use on concrete and masonry substrates in both vertical and horizontal applications
• Can be used to seal rivets, bolts, truck bodies, containers, railroad cars, travel trailers and mobile homes
• Also for the assembly of galvanized air conditioning ductwork, for narrow joints between wood and metal sections, between masonry and aluminum or stainless steel and between galvanized metal sections
• Cures in 10 - 12 hours