PU sandwich panel
No matter it is concrete or steel structures or prefab housing, they all should use fire-proof materials, but now some steel buildings or prefab temporary housing use banned foam board (EPS) in order to save money. Under this situation, the consequences could be disastrous in the event of a fire. Last year occurred in Henan Lushan Paradise apartment fire accidents are "metal foam house".
Polyurethane ( PU) sandwich panel is currently being promoted as a new type of plate. The board has a good insulation, heat insulation, sound insulation, and polyurethane does not burn, the combustion level up to GB8624 B1 standards, which is in line with fire safety.
Polyurethane sandwich panel is made by cold-formed steel plate with the middle of rigid polyurethane foam, which has good thermal insulation properties, high mechanical strength, quick installation advantages. Polyurethane, density 40 ~ 46 (kg / m3), thermal conductivity: 0.02 ~ 0.024 (W / (m.K)).