Can clear Polycarbonate Plastic Roof Panels be Painted? Yes, clear polycarbonate plastic roof panels can be painted. However, proper preparation is essential to ensure the paint adheres well and provides a durable finish. Start by cleaning the surface thoroughly to remove any dirt, grease, or debris. Lightly sand the panels to create a rough surface for the paint to bond with. Use a high-quality paint designed for plastics, as it will adhere better and withstand the elements.