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Common types of anti-corrosion primers: 1. Epoxy primers 2. Polyurethane primers 3. Alkyd primers 4. Zinc-rich primers 5. Phosphate primers There are many types of anti-corrosion primers on the market, each with its own unique composition and function.

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

Epoxy primer is one of the most popular types of automotive anti-corrosion primers. It is widely used in the automotive industry due to its excellent anti-corrosion performance and excellent adhesion. Epoxy primer is based on epoxy resin and has strong chemical resistance and waterproof ability.

Anti-corrosion primers can be divided into the following types according to their composition, function and application occasions: 1. Epoxy anti-corrosion primer 2. Polyurethane anti-corrosion primer 3. Zinc powder anti-corrosion primer 4. Alkyd anti-corrosion primer 5. Water-based anti-corrosion primer

If the budget is sufficient and long-term protection is required, zinc primer is the best choice. Otherwise, for some projects with medium protection requirements, oxidation primer is also a good economic choice.

In some industrial environments, chemicals such as acids, alkalis, and chemical solvents can corrode metals. If the primer does not have sufficient chemical corrosion resistance, the chemicals may penetrate through the coating to the metal surface, causing rust.

Zinc-rich primer prevents steel corrosion through the anodic protection of zinc, which is an electrochemical protection. The epoxy primer forms a dense shielding layer to isolate moisture and oxygen and prevent the oxidation of the substrate, which is a physical shielding protection.

Anticorrosion primer is a coating used on metal surfaces. Its main function is to prevent metal oxidation and corrosion by forming a dense protective film to isolate air, moisture, salt and other corrosive substances from contact.

If the coating needs to be exposed to the outdoors or in direct sunlight for a long time, topcoat is essential. Topcoat usually uses a more weather-resistant coating, such as polyurethane paint or fluorocarbon paint, to protect the epoxy anticorrosion primer from UV rays factors.