We don’t remove the plastic coating before or after the laser cutting process on sheet metal, the plastic coating serves as a protective layer during the cutting process. It helps prevent scratches, marks, and other damage to the surface of the sheet metal. Removing it before cutting will likely result in surface imperfections. The plastic coating makes it easier to handle and transport the sheet metal, especially for large or thin pieces. The coating adds a layer of grip and stability, making it less likely to slip or be damaged during handling. Plastic coating is standard on Dull Polished and Mirror Polished finishes and is avaliable on other materials by request.