The preparation process, mechanical performance and construction methods of a prepared polyurethane composite board of external thermal insulation for outer-wall were introduced.

Our company mainly produced the double skin pre-insulated PIR duct panel and accessories with fire resistance to grade B1 (GB Standard) and VOC free in China in 2002.

Besides the complex plywood to be prepared by polyurethane foam taking as the core layer, and also the test measuring analysis had done for the absorbing and sound insulation.