Flame-retardant PU foam features:
Flame-retardant PU foam features:
Flame retardancy: This is its most important characteristic. When exposed to flame, it:
Reluctant to ignite: Requires higher temperatures or a longer time to ignite.
Slow flame spread: Once ignited, flames spread very slowly across its surface.
Self-extinguishing: When the fire source is removed, it extinguishes itself and does not continue to burn.
Produces less smoke and toxic gases: Compared to conventional foams, the amount of smoke and toxicity produced during combustion is generally lower (although this depends on the specific formulation and standard requirements).
Expansion and filling: Like conventional foams, after being dispensed from a pressurized can, it rapidly expands several times its original size, filling voids, cracks, and pores, forming an effective seal, soundproofing, and thermal insulation layer.
Adhesion: It exhibits excellent adhesion to a variety of building materials (such as concrete, brick, wood, metal, and plastic).
Stable after curing: After curing, it forms a tough and resilient foam.