... . 60% wood powder, 30% HDPE, 10% additives 2.Anti-UV,Waterproof 3.100% recyclable 4.Easy to install Product Details: TypeEngineered ... fiber(wood powder,bamboo powder,etc)10%additives(Anti-UV agent, Anti-oxidant,stabilizers ,colorants,and etc.)Surface treating methodBrushing, sanding ... ,30*55,12*72,40*80,50*100,25*150 waterproof wpc decking material