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Common types of anti-rust paints are 1. Zinc-rich primer 2. Epoxy primer 3. Iron oxide red primer 4. Polyurethane paint In the selection of anti-rust paints, there are many types available on the market, and each paint has its specific anti-rust mechanism and applicable scenarios.

Epoxy anticorrosion primer is particularly suitable in the following cases: Highly corrosive environment Marine environment Heavy industrial equipment Buried pipelines and storage tanks Bridges and building steel structures Concrete protection

Although some antifouling boat paints may have certain anti-corrosion functions and strong adhesion, in order to ensure the long-term stability and protection of the coating, primer is still recommended in most cases.

During the voyage, ships will encounter erosion from waves, collisions, sand and other external factors. If the coating of the antifouling boat paint is damaged, the metal materials exposed on the surface of the hull may be corroded by seawater, causing metal corrosion, rust and other problems.

Commercial cargo ships and fishing boats: These vessels are frequently used and are often exposed to various harsh marine conditions. Depending on the actual use, it is recommended to apply at least three coats of antifouling bottom paint, and add an extra layer to key parts (such as the bow and stern) to improve durability.

Quartz sand is one of the most common anti-slip additives. It has strong hardness and wear resistance, and can significantly increase the surface roughness of the coating. Quartz sand has different particle sizes, and coarse or fine quartz sand can be selected as needed to adjust the anti-slip effect.

The unpolished deck surface may have oil, dust or other impurities, which will become obstacles to the adhesion of the paint. Even if high-quality paint is used, if the marine anti rust paint cannot be firmly attached to the deck surface, it is easy to fall off or bubble.

Copper ions, as the main antifouling component in marine antifouling primer, can effectively inhibit the attachment of marine organisms, but after being released into the water body, they are easily combined with organic matter and sediments, thus existing in the environment for a long time.

The main functions of anticorrosion ship bottom paint and antifouling ship bottom paint are different. One focuses on preventing metal corrosion and the other focuses on preventing biological attachment. In order to achieve the coordinated use of the two, it is first necessary to ensure their compatibility in chemical composition.

In freshwater, the aging rate of coatings may be faster due to the fluidity and temperature changes of the water body. Especially for self-polishing coatings, the wear rate of coatings will be faster in freshwater environments with faster water flow, resulting in premature attenuation of antifouling effects.