The surface of the printed color steel plate is relatively glossy, and the reasons for the matte are varied, we should pay attention to find the cause of the matte and solve it when we are producing and processing, otherwise the use of the product will be affected to a certain extent, the following will introduce to you the reasons for the matte surface of the plate and the treatment method.

Causes:

1. The reason for the formula of printing color steel plate coating. Too much pigment, filler and solvent in the paint, not enough fineness or dust.

2. The surface of the substrate is rough in Chinese or has oil, moisture, wax and other substances, and the coating is not completely cured.

3. The mixing of the paint before the machine is not sufficient, and the solid of the paint sinks at the bottom of the barrel, so that the pigment of the bucket is less during construction.

4. The paint participates in the excessive amount of thinner, which dilutes the effect of the bright coating.

5. The surface coating is too thin, and the temperature of the roller coating chamber is too high or too low during construction.

6. The temperature of the curing oven is set too high, the circulation of hot air in the furnace is not sufficient, and the coating is overbaked, so that the eye color has the phenomenon of aging and causing the gloss to decline.

Solution:

1. Check whether the fineness of the coating on the machine meets the process requirements.

2. The printed color steel plate coating should be fully mixed and filtered before getting on the machine, and the thinner should not participate too much.

3. Control the humidity of the roller coating chamber to prevent moisture from mixing into the coating.

4. Check whether the thinner matches the paint to ensure the thickness of the wet film of the top coating, which is not too thin.

5. The furnace temperature setting of each section of the curing oven should be reasonable to avoid being too high or too low.

The above is the main reason and solution for the surface of the printed color steel plate is not shiny, if you want its gloss to be not affected, you need to master the correct operation method, in the process of coating deployment, pay attention to the correct grasp of the coating method, to ensure that the thickness of the coating film is in line with the requirements.