5, resistance to deformation, not easy to crack, finishes stable and safe. 6, polyurethane material porosity structural stability, is essentially closed-cell structure, excellent xps extrusion board company, not only insulation properties, xps extrusion board Nanjing, and freeze-thaw resistance, sound absorption or. The average life expectancy rigid polyurethane foam insulation structure, under normal use and maintenance conditions, xps extrusion board, can reach more than 30 years. Polyurethane insulation board 1, rigid polyurethane panels with low thermal conductivity, xps extrusion board density, good thermal performance. When the density of rigid polyurethane 35 ~ 40kg / m3, thermal conductivity is only 0.018g ~ 0.023w / (m.k), equivalent to about half of the EPS it is the lowest of all kind of insulation material thermal conductivity.