Expandable Pu Foam is specially developed for wood. Suitable for wooden doors and Windows or wooden buildings. It is more popular in the Japanese and Korean markets.WD series have good adhesion to wood structure, wood, PVC, aluminum and other substrates.It provides a simple, economical way to seal gaps around Windows and door frames.Expanding just enough to fill gaps without bowing or bendingthe frame. At the same time, it can provide greater insulation value than cracks in fiberglass or caulking.
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