... /board low water absorption,high hardness,anti-corrosion,thermal insulated capacity and easy cutting Heat insulation extruded polystyrene XPS ... :water absorption, high hardness, good anti-corrosion, good thermal insulated capacity, and easy cutting, high-quality enviormental protection,as ... available from 32kg to 50kg per cubic meter, 6. thermal conductivity :0.028w/mk7. oxygen index:28 8. ...