Reasons for Color Differences in Automotive Repair Paint Spraying
What methods can we adopt to address the issue of color difference after car paint spraying? You should know that it is impossible for the car paint to be the same as the original paint after repair. It can only be close to the color of the original paint to a certain extent, but it cannot be seen by the naked eye. When dealing with the issue of color difference after automotive paint spraying, three methods can be adopted for automotive repair paint: one is the method of gradually fading the coating; The second method is to use double-layer adhesive tape for partial spraying; The third method is to use the car door or body part boundary discount as the boundary for partial spray painting. The specific introduction here is as follows:
1、 The method of gradually thinning the tongue. When it is impossible to adjust the color of the repaired paint to match the old paint film, the partially repaired color can be gradually filtered to be close to the color of the old paint film during the construction operation. When spraying the final layer, add an appropriate amount of the same type to the already diluted paint material, which can alleviate the color difference between the new and old paint after treatment.
2、 Partial spraying method using double-layer adhesive tape. Use the double tape technique to cover the changing parts of the vehicle body and model, such as angles, before spraying. First, use the first tape along the folding edge and cover it with paper. Stick it above the angle edge, and then stick the second tape above the first tape. After partial rectification, the visual difference caused by the brightness of adjacent sides of the angle can be used to slow down the chromaticity difference between new and old paint. This method is more effective for silver based paint. The requirement is that when spraying onto two layers of adhesive tape, it should be minimized as much as possible. After the paint film is dry and the tape is torn off, it must be polished to prevent hard edges from appearing.
3、 Use the door or body part as the boundary for partial spraying. Before spraying, the damaged area should be smoothed and coated with two coats. The old paint film on the area that needs to be sprayed should be sanded with 280 #~400 # water sandpaper, washed with solvent, and then partially sprayed. After partial spraying, it can be transferred in by using the boundary folding between components.
Article source: Automotive repair paint http://www.jinliangxincai.com
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