Printed steel coil is compared with gloss surface and matte caused reason is various, everyone at the time of production and processing to pay attention to find the cause of matt and get rid of, otherwise the use effect of product will be affected by certain influence, the following is to introduce to you the cause of the plate surface lacklustre and processing methods.
Causes:
1, the reason for Printed steel coil coating formula. Excessive amounts of pigments, fillers and solvents, insufficient fineness or dust in coatings.
2, the substrate surface language rough or oil, water, wax and other things, the coating is not completely cured.
3, coating on the machine before mixing is not enough, the solid paint points sink in the bottom of the barrel, so that the construction of the bucket of pigment.
4, paint to participate in excessive diluent, dilute the role of light coating.
5. The surface coating is too thin, and the temperature of the roller 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 not enough, the coating is baked too much, and the luster is reduced due to aging.
Treatment methods:
1. Test whether the fineness of the coating on the machine reaches the process requirements.
2, printing color steel plate coating in the machine before fully mixing evenly and filtering, diluent can not participate in too much.
3. Control the humidity of the roller coating room to prevent moisture from mixing with the coating.
4. Check whether the thinner matches the paint and ensure that the wet film thickness of the surface coating can not be too thin.
5. The furnace temperature of each section of the curing furnace should be set reasonably to avoid being too high or too low. The above is the main reason for the dull surface of the printing color steel plate and the solution. If you want its gloss not to be affected, you need to master the correct operation method. In the process of coating deployment, pay attention to the correct control of the coating method, and ensure that the thickness of the coating film is in line with the requirements.
Post time: May-24-2022