Powder coating material| Detailed Explanation

Powder coating, as the name suggests, refers to the use of powder materials for coating production. What is the difference between powder coating material and paint? Paint refers to a chemical mixture coating that can firmly cover the surface of an object for protection, decoration, signage, and other special purposes. Mainly referring to organic chemicals.

Powder coating material refers to a type of paint that is not liquid like traditional paint. It is a powder like solid and has more advantages in environmental protection compared to liquid paint. Now it is gradually replacing liquid paint.

How to use powder coating materials correctly?

To ensure the quality and effectiveness of powder coatings, correct use and storage of powder coating material are crucial.

1. Determine the cleanliness of the surface to be coated: Before applying powder coating, ensure that the surface to be coated is free of impurities such as oil stains and dust. You can use solvents or cleaning agents to clean and then wipe dry with a clean cloth.

2. Prepare coating spraying equipment: Special spraying equipment is required for powder coating spraying, commonly including electrostatic spraying equipment and electrophoretic spraying equipment. Before use, check whether the nozzle and electrode are working properly to ensure a good spraying effect.

3. Control the spraying thickness of coatings: The spraying thickness of powder coatings has an important impact on the quality of the coating film. Therefore, during the spraying process, control should be based on the required thickness of the coating film.

4. Control of spraying temperature and humidity: The spraying temperature and humidity of powder coatings are also very important for the quality of the coating film. 5. Curing after spraying: After the powder coating is sprayed, it needs to be cured to form a strong coating film. Usually, powder coatings are baked at a temperature of 120 ℃ -200 ℃. 

Process of the coating production by using powder coating materials

Powder coating material is a new type of material mainly used in decorative engineering such as exterior walls and roofs of buildings. The production process of coating powder is as follows:

1. Place the raw materials (metal powder) into the hopper, and classify them through a vibrating screening machine. Then mix the metal powder and additives in a certain proportion and send them into a mixer to stir evenly.

2. The stirred material is fed into the spray gun through the conveying equipment for atomization forming, and the formed material enters the cooling chamber for cooling and solidification;

3. The cured product can be output through the discharge port. The coating line mainly consists of a powder loading machine and a powder unloading machine.

The powder feeding machine evenly transports the raw materials to the powder supply pipe at the head of the spray gun, while the powder feeding machine sucks the finished products out of the spray gun head.

The coating forms a uniform film layer under the action of high temperature and pressure, which has a certain degree of hardness, corrosion resistance, wear resistance, and good adhesion and physical and mechanical properties.

How to store powder coating material correctly?

1. Selection of storage environment: Powder coating materials should be stored in a clean, dry, and well-ventilated environment. Avoid direct sunlight and high temperature environments to avoid affecting the quality of powder coating materials.

2. Selection of containers: Powder coating materials should be stored in well sealed containers to prevent moisture and oxidation. Generally speaking, metal drums are ideal storage containers.

3. Avoid mixed storage: Due to the different compositions and colors, it is best to store different types and colors of powder coating materials separately to avoid cross contamination.

4. Regular inspection and mixing: During storage, the quality of the powder coating material should be checked regularly. If there are clumps, deterioration, and other phenomena, they should be dealt with in a timely manner. 

5. Prevention of moisture and oxidation: Powder coating materials are very sensitive to moisture and oxidation, so attention should be paid to moisture and oxidation prevention during storage. You can place desiccants in the container or seal the container mouth with cling film to reduce the chances of moisture and oxidation.

Conclusion

This article mainly talks about what the powder coating material is and its correct usage, production process, and storage precautions. Powder coating material is an efficient, environmentally friendly, and durable surface treatment material that is increasingly being used in various fields.