Qingyuan Automobile Repair Paint Manufacturer Tells You About White Pearl Spray Techniques that Most Paint Technicians Don't Know
1. After cleaning the electrophoretic board, spray it directly, and after the board flashes dry, spray the base paint directly
2. Within five days after spraying at 40 ℃, there is no need to polish, and the color paint can be directly sprayed
3. By using 285-38 (white)/49 (black) intermediate coating, a gray scale similar to the base paint can be prepared
4. After adding 522-10, it can be applied to all automotive plastic substrate spraying
Generally, it is recommended to directly use a gray scale of 7 on a white pearl background, which means that the product can be directly coated with 285-38 white without grinding
Standard construction of white pearls
First of all, taking a plate with electrophoresis as an example, if the surface is free of problems, only degreasing and cleaning are needed without polishing
Process 1: Construction of wear-resistant primer
The following are the spraying requirements for the primer, and selecting a 7-grade grayscale wear-resistant primer is the key to success.
Why use different shades of primer?
The following are the color differences after spraying the primer with three colors: gray, black, and white. As shown in the figure, the greater the color difference with the paint, the greater the color difference after spraying. The correct method of operation is to use BASF Parrot's recommended No. 7 grayscale primer, which can reduce the amount of base white paint used and avoid the overall color yellowing caused by excessive spraying of base white paint.
Process 2: White background construction
The following are the spraying parameters for a white background, laying a solid foundation for the pearl layer. Pay attention to spraying twice to achieve coverage.
Process 3: Pearl layer construction
Below is the construction of the pearl layer, please pay attention to the same two and a half coats of spray as the metal paint.
Process 4: The effect of final spraying of varnish
The above is the standard construction process for White Pearl. We hope it can help us!
There is another key point that affects the color of white pearls
Different thicknesses and passes of pearl layers can also have a significant impact on color:
There are significant differences in the number of pearl layers after spraying. Three methods were used to compare the differences after spraying, and each method has a different color effect. According to the standard: match the original factory color effect using two passes and an action layer method.
Advocate: Spray white pearls to avoid color differences. Advocate using the method of adding two layers of action to operate
Article source: Qingyuan Automotive Repair Paint http://www.jinliangxincai.com/
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