Polyurethane Edge glass and cotton sandwich panel is currently recognized as a better steel structure building envelope fireproof insulation plate. It has low thermal conductivity, good load resistance, high flexural strength, no water absorption, no rot, no insect-eaten mouse bites, good flame retardancy, high fire rating, and a wide range of temperature tolerance. The use of polyurethane (PU. PIR) of the physical characteristics and the unique formula, the polyurethane blowing agent evenly sprayed on the color coated steel plate, so that the foaming agent in the color coating between the foam formed into three layers of polyurethane (PU) one-time molding. PIR) Color steel composite sandwich panel.
This new lightweight building material is the perfect combination of color-coated steel plate and polyurethane, and is the development direction of light building materials.