Efficient insulation due to the thermal conductivity of polyurethane foaming agent used is much lower than that of air (good insulation properties) density of high-quality sandwich board type, so the insulation properties of rigid polyurethane foam is superior to those materials containing only air such as: mineral wool, fiberglass and polystyrene. Cement foam insulation board: cement foam insulation board is cement, fly ash and flame retardants, blowing agents and other additives, and other substances level density of high quality sandwich panels, wall pass scientific formula made of rigid foam plastic. Rigid polyurethane board with low thermal conductivity, good thermal performance. When the density rigid polyurethane for 35 ~ 40kg / m3 density high-quality sandwich board material, thermal conductivity is only 0.018g ~ 0.023w / (m.k), equivalent to about half of the EPS, and is all the lowest thermal conductivity of insulation materials a. The density of high-quality sandwich panels market | Zhucheng Yong Hua Plastic Foam | pingyin density high quality sandwich panels provided by Zhucheng Yong Hua Plastic Foam Factory. Zhucheng Yong Hua Plastic Foam Factory (www.zchyps.com) (www.zchuayong.com) Shandong Weifang, a leader in industrial products, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Plastic Foam in Zhucheng Hua Yong leadership with the staff warmly welcome all inquiries negotiations to create the cities of Hua Yong foam plastic a better future.