... water absorption,high hardness,anti-corrosion,thermal insulated capacity and easy cutting Heat insulation extruded polystyrene XPS foam board ... high hardness, good anti-corrosion, good thermal insulated capacity, and easy cutting, high-quality enviormental protection,as well as long ... per cubic meter, 6. thermal conductivity :0.028w/mk7. oxygen index:28 8. compressive strength:150kpa to 900kpa 9. water ...