Protective film for plastic plates 1. This series of product can be used for plastic plates, which adopt PVC, PET, PC, PMMA as their backing materials. This series of product can protect these plates and prevent them from being scratched, damaged and contaminated etc during the processes of transportation and storage of these plates and fabrication process with molds. 2. This series of protective film, with PE as its backing material, have excellent heat-resistant characteristic, and therefore can be used for protecting the surfaces of plastic plates . 3. Where the temperature is as high as 60, this protective film can still have a stable performance and provide best protection.