Concrete formwork panel

摘要

Concrete molding panel comprises: an air pore-containing core layer of polypropylene with a thickness of 3-30 mm and a density of less than 1 g/cm 3>; and at least one air pore-free outer layer of polypropylene with a thickness of 0.5-30 mm. The polypropylene of outer layer comprises additives including (in wt.%): talc (1-5); and a long chain silicone or polytetrafluoroethylene particles (1-10).