Pre-coated films come in a wide variety of materials, typically selected based on the substrate and coating. Metal substrates are the most common, with steel plates being the most widely used in construction, home appliances, and transportation. Aluminum plates, due to their good corrosion resistance, are often used for decoration and special weather-resistant environments. Plastic substrates such as polyester (PET), polyvinyl chloride (PVC), and polycarbonate (PC) are often used for protective or packaging films due to their lightweight and flexibility. In addition, paper-based or composite materials also have a market in short-term protective or decorative applications, typically enhanced with adhesive layers or special coatings.
Regarding coating materials, different materials impart different properties to pre-coated films. Polyester coatings offer good weather resistance, suitable for outdoor use; polyurethane coatings have high flexibility and abrasion resistance, often used for high-end surface protection; fluorocarbon coatings are corrosion-resistant and UV-resistant, frequently used for building exterior wall decoration; acrylic coatings have excellent adhesion and moderate cost, suitable for general industrial and home appliance panels. Through a reasonable combination of substrate and coating, comprehensive optimization of protective performance, durability, and aesthetics can be achieved according to different application requirements.
