... Thickness: 12mm - 20 mm WPC board as construction material for concrete formwork on hot salesOther Name: WPC panel, WPC foam board ... , caulked and shaped, installed easily as well as wood. B: lightweight; durability; good flexibility; no change in shape, no shrinkage, no ... its smooth surface and it doesn't absorb water from concrete, no need to treat with plaster as twice processing, demoulding ...