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Printed color steel plate surface without luster reasons and treatment methods
Release time:
2023/10/30
Printed color steel plate surface are more glossy, and cause no luster reason is various, we should pay attention to the production and processing time to find the cause of no luster reason and solve the problem, otherwise the use of the product will be affected to some extent, the following to give you an introduction to the surface of the plate no luster reason and processing method.
Printed color steel plate surface are more glossy, and cause no luster reason is various, we should pay attention to the production and processing time to find the cause of no luster reason and solve the problem, otherwise the use of the product will be affected to some extent, the following to give you an introduction to the surface of the plate no luster reason and processing method.
Produces the reason:
1, the reason of printing color steel plate coating formula. The amount of pigment, filler and solvent in the paint is too much, not enough fineness or dust.
2, the substrate surface state language rough or have oil, moisture, wax and other things, the coating is not fully cured.
3、Mixing is not enough before the coating is put on the machine, the solids of the coating are sunk at the bottom of the barrel, so that there is less pigment in the working barrel during construction.
4、The paint participates in the diluent too much, which dilutes the role of light coating.
5、The top coating is too thin, and the temperature of the roller coating room is too high or too low during construction.
6, curing furnace temperature is set too high, the amount of hot air circulation in the furnace is not sufficient, the coating is baked too hot, so that the eye color has aging caused by the phenomenon of gloss reduction.
Treatment method:
1, test the fineness of the coating on the machine whether to reach the process requirements.
2, printing color steel plate coating before the machine should be fully mixed and filtered, diluent can not participate in too much.
3、Control the humidity of roller coating room, prevent moisture mixing into the coating.
4、Check whether the thinner and the coating are matched to ensure that the wet film thickness of the top coating can not be too thin.
5, curing furnace temperature settings for each section should be reasonable, avoid too high or too low.
The above is the main reasons and solutions that lead to the surface of the printed color steel plate is not glossy, if you want its gloss is not affected, you need to master the correct operation techniques can be, in the process of paint mixing pay attention to the correct mastery of the coating method, to ensure that the thickness of the coating film is in line with the requirements can be.
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