How To Make A PU Sandwich Panel?

What is  PU Sandwich Panel?

PU Sandwich Panel surface is generally galvanized steel plate or aluminum plate, is wrapped in hot-tie steel plate outside a layer of galvanized or aluminum plated, so as to prevent the outside of the insulation after a period of time appear rust, cracking, waterproofing, discoloration and so on.

Polyurethane: Polyurethane is a core material between the galvanized plate of the surface and the aluminum foil of the substrate, which acts as insulation, insulation, sound insulation and fire protection.

Aluminum foil: based on galvanized substrate material, play a role in heat reflection.