Nowadays, the application of sheet metal shell processing parts has become more and more extensive, among which, painting is a process that we all involve. However, due to the different uses and needs of products, the treatment of painting traces in the process of sheet metal shell processing varies from manufacturer to manufacturer. The following is a brief introduction to the treatment of paint traces in the processing of sheet metal shells:
Problem 1: The top coat around the trimmed part of the sheet metal shell processing bulges into a ring shape.
Prevention: The sheet metal enclosure is processed by sanding the repaired part until the metal layer is exposed. Perform a solvent test using thinner at the edge of the exposed paint layer; if the paint is soft, this layer must be sealed. Atomic ash and eye filler ash should only be used on the exposed metal and not over the original paint surface. Select the appropriate sandpaper. Make sure that all preparatory materials are completely dry.
Remedy: After the sheet metal shell repair material has dried, grind down the damaged part, then isolate it with priming material and repaint.
Problem 2: There are some dots protruding from the surface of the sheet metal shell fabrication.
Prevention method: Sheet metal shell fabricators make sure that all preparation materials are dry. Carefully clean the substrate with a silicone-removing cleaner. The polyester material should be isolated before spraying the top coat.
Remedy: Sand the defective area and repaint the sheet metal shell afterwards.
In summary, this is how to deal with paint marks when processing sheet metal shells. With the above, we can deal with paint marks well for the problems that arise, thus ensuring that the sheet metal shell processing parts can get a good painted appearance.
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