1. The protective film is inert to the surface of the protected material.
2. The protective film has a good adhesion to the protected material. During the material handling and processing, the protective film will not warp and fall off.
3. The protective film has good weather resistance and adhesive stability. After several days or long time sticking, the peeling force does not increase significantly, and it is easy to peel off.
4, low crystal point.