How to understand PE protective film?

PE protective film, full name Polyethylene, is a polymer organic compound with a simple structure. It is also a polymer material widely used around the world.
Polyethylene protective film is based on special polyethylene (PE) plastic film. According to density, it can be divided into high density polyethylene protective film, medium density polyethylene and low density polyethylene. It has soft properties, good adhesion, and is easy to peel off without leaving any residue.
The biggest advantage of PE protective film is to protect products from pollution, corrosion, scratches and original bright surfaces during production, processing, transportation, storage and use, improving product quality and market competitiveness.