What are the Main Differences Between PU and PE?

PE material is polyethylene, which is the largest type of plastic material. It is a polymer material synthesized from polyethylene. There are basically two categories: low density polyethylene LDPE (lower strength); High density polyethylene HDPE. PE materials are divided into five grades according to the international unified standards: PE32, PE40, PE63, PE80 and PE100. The…