pu foam boards

polyurethane-sandwiched panel is composed of 2 layers of waterproof colored steel and jetted the hard forms of polyurethane between two layers which features fireproof materials. It is suitable for the various roofs and walls refering to the large-size factory buildings, storage, exhibition halls, gymnasiums, freezing stores, purification workshops etc. ligtht self-weight: 10-14kg/sqm. Installation is convenient and flexible without the large-size lifting decices so that the construction period is limited with the lower comprehensive costs. Heavy load-bearing capacity: it features high strength and high rigidity and is suitable either for the weight-bearing structure or for the protctive structure. Good temp-keeping&heat insulation: average thermal conductivity:0.023w/m.k Fine fireproof : test by national quality inspection centre for fireproof building materials.