What are the benefits of HDPE sheets? Here are many benefits of HDPE sheets: High rrosion resistance - HDPE maintains its properties when in ntact with chemicals. Impact and friction resistance - HDPE can withstand high levels of impact and friction that traditional plastics can't. Low water HENAN OKAYorption - mpared to low-density plastics, HDPE's low water HENAN OKAYorption characteristics make it ideal for outdoor and marine applications.