Window & Door Foam™

Bostik Window & Door Foam sealant is a single component minimal expanding polyurethane foam sealant. Window & Door Foam is easy to use and will not bow or warp windows or doors when applied correctly.
Window & Door Foam creates a water resistant bond to vinyl, wood and metal frames making it ideal for filling cracks and gaps around windows and doors and any type of hole, or voids where air permeation or heat loss may occur.