The surface of the printed color steel plate is relatively glossy, and the reasons for the matte are various. Everyone should pay attention to finding the cause of the matte during production and processing and solve it, otherwise the use effect of the product will be affected. To a certain extent, let's introduce the reasons and treatment methods for the matte surface of the plate.

Cause:

1. The reason for the formula of printing color steel plate paint. There are too many pigments, fillers and solvents in the paint, and the fineness is not enough or dust.

2. The surface of the substrate is rough or has oil stains, moisture, wax, etc., and the coating is not completely cured.

3. The mixing of the paint is not sufficient before it is put on the machine, and the solids of the paint are submerged at the bottom of the barrel, so that there is less paint in the barrel during construction.

4. The paint participates in excessive diluent, which dilutes the effect of glossy paint.

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

6. The temperature of the curing furnace is set too high, the hot air circulation in the furnace is insufficient, and the coating is overbaked, which causes the wink to age and cause the gloss to decrease.

Processing method:

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

2. The printed color steel plate paint should be fully mixed and filtered before loading the machine, and the diluent should not be added too much.

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

4. Check whether the diluent matches the paint to ensure that the wet film thickness of the topcoat is not too thin.

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

The above are the main reasons and solutions for the unglossy surface of the printed color steel plate. If you want its gloss not to be affected, you need to master the correct operation methods. In the process of paint blending, pay attention to the correct mastery of the coating method. Ensure that the thickness of the coating film meets the requirements.