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Commonly used protective paint coatings: 1. Epoxy resin paint, 2. Polyurethane paint, 3. Alkyd resin paint, 4. Acrylic paint, 5. Chlorinated rubber paint, 6. Zinc powder paint, 7. Silicate paint.

There are many types of protective paints. According to different substrates and uses, they can be roughly divided into epoxy resin paint, polyurethane paint, acrylic paint, fluorocarbon paint, and zinc powder paint.

Metal protective paint is a coating specially used to protect metal surfaces from external factors such as oxidation, corrosion, and wear. It forms a dense protective film on the metal surface to isolate air, moisture, and other corrosive media, thereby extending the service life of metal materials.

In a relatively stable indoor environment, the service life of metal protective paint can reach more than 10 years. In marine environments, due to the influence of high salinity and humidity, the service life of metal protective paint is relatively short, generally between 3 and 5 years.