Coating Guidelines for Metallic Paint
Release Time:
2022-11-09
Metallic paint is, of course, very common in life. Because its advantages are more prominent, so there are more people who choose to use it. Today, I would also like to take this opportunity to introduce the key points of metallic paint coating? If you want to know, come and have a look.
Metallic paint It is also very common in life. Because its advantages are more prominent, so there are more people who choose to use it. Today, I would also like to take this opportunity to introduce the painting points of metallic paint. If you want to know, come and have a look.
Metallic paint needs to be repaired during maintenance. Professional scratch repair has strict requirements for the working environment, because the most feared thing in paint is the influence of dust and impurities. When dust, operator dandruff, or fibers from clothing are deposited on the exterior surface of the vehicle, spots or bumps may form. Then there is maintenance. Plastic parts with paint sprayed on the surface should be cleaned with a high-quality cleaner; when waxing, do not use excessive force to avoid paint penetration and exposure of the base color. In addition, you should also know that the substrate of this product needs to be derusted, degreased, and dedusted. Methods such as pickling, phosphating, electric grinding, manual grinding, and sandblasting can be used for removal. Solvents and white oil can be used for cleaning. If the substrate is relatively rough, a layer of putty or primer with good adhesion and dryness can be scraped first. In addition to these, it should also be noted that the air compressor and oil-water filter of metallic paint are used after water removal, and the substrate is dry-sprayed to avoid pinholes in the paint film caused by water and oil. In addition, if the metallic paint is sprayed with topcoat before it is dry, it may bite the bottom or cause prickly heat, resulting in reduced adhesion, especially for smooth substrates. Topcoats should not be equipped with ecological solvent primers.
In addition to this, Metallic paint It should also be used with 2K type paint, and the hardener or component B should be prepared according to the specified weight ratio. Note: Since the density of the hardener is higher than that of the paint base, the amount is often insufficient according to the visual ratio. Moreover, the paint with hardener added must be completed within the specified activation period, and the excess cannot be poured back into the paint bucket to avoid gelation of the entire bucket. In addition to these, when formulating with thinner, adding a small amount of thinner can reduce the viscosity of the coating, but when approaching the viscosity, the rate of viscosity reduction becomes slower and slower, so there is a stopwatch test. In addition, if the wrong type of thinner is used, the metallic paint will have major quality problems: the same series of thinners also need to be selected according to the temperature. Of course, in addition to these words, it is also because when spraying metallic paint, attention should be paid to the amount, air volume, spray width, speed, spray gun distance, etc. These parameters are the same as the paint application viscosity. The degree of atomization can be adjusted. Different paints have different requirements for the degree of atomization. Different degrees of atomization will cause the same paint to have different colors, gloss, patterns, and arrangements. If the atomization is too low, uneven paint film, poor leveling, or shrinkage pinholes may occur; if the atomization is too high, it may become dull and rough.
The above article content we tell you friends about Metallic paint Coating points of the guide, if you do not understand it, then quickly come and have a look. That's all for the knowledge points in this regard, I hope it can bring you help.
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