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You are here: Home » Service » News » Product News » Advantages and disadvantages of powder coating

Advantages and disadvantages of powder coating

Views:14     Author:Site Editor     Publish Time: 2018-04-08      Origin:Site Inquire

Powder coating is a new 100% solid powder coating without solvents. It has the characteristics of solvent free, pollution-free, recyclable, environmental protection, saving energy and resources, reducing labor intensity and coating mechanical strength. Next, we mainly introduce the advantages and disadvantages of powder coatings: first, the best powder coatings.

Powder coating is a new 100% solid powder coating without solvents. It has the characteristics of solvent free, pollution-free, recyclable, environmental protection, saving energy and resources, reducing labor intensity and coating mechanical strength. Next, we will mainly introduce the advantages and disadvantages of powder coatings.

First, the advantages of powder coating are as follows:

1, the powder coating does not contain organic solvents, avoiding the fire and poisoning caused by organic solvents and the insecurity in transportation. Although there is a danger of dust explosion, if we control the concentration of dust properly, explosion can be avoided.

2, there is no air pollution caused by organic solvents, which is consistent with the requirement of preventing air pollution.

3. The powder coating is a solid system of 100%. The closed circuit system can be used. The over spray powder coating can be recycled and reused, and the utilization rate of the coating can reach more than 95%.

4, the molecular weight of the powder coating resin is larger than that of the solvent coating. Therefore, the performance and durability of the coating are greatly improved than that of the solvent coating.

5, when the powder coating is coated, the thickness of the coating can be controlled. The thickness of the coating can reach 30~500 m, which is equivalent to the thickness of the solvent coating to more than ten passes, reducing the number of the construction, which is beneficial to the energy saving and the production efficiency.

6. In the construction application, it does not need to adjust the viscosity with the seasonal variation; the construction operation is convenient, it does not need the skilled operation technology, and it is not easy to produce the film defects such as the flow hanging when the thick coating is thick; it is easy to implement automatic production line production.

7, it is easy to maintain the sanitation of the construction environment. The powder attached to the skin can be blown off by compressed air or washed out with warm water and soapy water, and no irritating cleaning agent is needed.

8, powdered paint does not use solvents, it is an effective energy saving measure, because most of the solvent's starting material is petroleum. Reducing the amount of solvent can directly save material consumption.

Two, powder coatings and coatings still have the following disadvantages.

1, the manufacturing technology of powder coatings is more complex than ordinary coatings, and the cost of coating manufacturing is high.

2. The coating equipment of the powder coating is different from the general coating. It can not be used directly for the coating equipment of the general coating. The user needs to install new coating equipment and powder coating recovery equipment.

3. The softening point of the resin for powder coating is generally higher than 80 C. When the powder coating is made by melting method, the melting temperature is higher than the softening point of the resin, and the baking temperature in the construction is higher than the temperature at the time of manufacture. In this way, the baking temperature of powder coatings is much higher than that of common coatings. And it can not be coated with large equipment and heat sensitive base material.

4, the thick coating of powder coatings is relatively easy, but it is difficult to smear the thickness of (15~30) m, resulting in excess function and waste of materials.

5, changing the color and variety of paint is more troublesome than general coating. When the color needs to be changed frequently, the economy of powder coating production and construction is seriously damaged, and the cleaning between color changing takes time. Powder coatings are most suitable for long time operation of the same type and color of powder.


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