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Foaming principle of PU foam

Tyd: 2020-07-14 Hits: 1

When the material is sprayed from the aerosol can, the foam-like polyurethane material will rapidly expand and solidify with the air or the moisture, then form a foam. The cured PU foam has various effects such as caulking, bonding, sealing, heat insulation, sound absorption, etc. It is an environmentally friendly and energy-saving, easy-to-use building material, which can be applied to seal leaks, fill in gaps, and fix adhesion Knot, heat insulation and sound insulation, especially suitable for sealing and waterproofing between plastic steel or aluminum alloy doors and windows and walls.