Полное руководство по методам покраски автомобилей

1.Judging the Spraying Effect of Black Paint on Cars:
Ensure complete coverage of the base coat, then lightly sand with 800-grit sandpaper, blow off dust and water, respray the base coat, and finally apply clear coat. Sanding smoothens the base coat, enhancing the clear coat’s appearance.
 
2.Preventing Clear Coat Runs in Winter:
Recommend a three-coat application method. Heat the clear coat with hot water and mix it with hardener and thinner in a 2:1:1 ratio. Add slightly more thinner to prevent runs.
 
3.Applying Clear Coat Over Solid Paint:
Clear coat is recommended for easier polishing and buffing, enhancing the paint’s overall quality.
 
4.Preparing Body Lines for Undercoating:
When applying putty, follow the body lines and add extra layers. Use an iodine-tungsten lamp to identify and sand down shadows, ensuring clear lines.
 
5.Handling Overlap Spray Flow:
Bake dry the overlap area, sand it with sandpaper, then refine with finer sandpaper until no base coat shows, ready for polishing.
 
6.White Pearl Paint Application:
Difficulties lie in color matching, requiring special attention to overlaps (base coat + pearl blend for overlaps). Apply pearl coat evenly and finish with clear coat to minimize color differences.
 
7.Achieving a Smooth and Glossy Finish Without Runs:
Use a 2:1:1 ratio for clear coat, reduce paint output, increase air pressure, move the spray gun quickly, and apply multiple coats in overlapping strokes. Avoid pausing to prevent sagging.
 
8.Spraying a Silver Metallic Hood:
Dilute the base coat and apply it lightly in two coats. Apply clear coat with standard pressure spraying, ensuring even coverage. Apply additional pressure if needed to avoid dark spots.
 
9.Tips for Spraying Metallic Paint:
Focus on achieving full and even metallic flakes rather than avoiding blotchiness. The correct method is to apply multiple light coats with the right ratio of base coat to thinner, achieving an OEM-like finish.
 
10.Handling Large Areas with Putty:
Apply thin layers of putty in multiple sections to avoid curvature caused by large spatulas. Fill gaps between each layer to ensure flatness. Sand in straight, horizontal strokes, working lightly and swiftly.
 
11.Flash-off Time for Clear Coat:
Flash-off is optional. Start with high air pressure, more paint output, and fast strokes to keep the surface damp and non-reflective. Begin pressing down on the spray gun for the second coat, using slightly thicker clear coat.
 
12.Addressing Pinholes:
Possible causes include water in the putty or issues with the spray gun. Solutions involve sanding, degreasing, and, if necessary, covering with a thicker layer of solid paint.
 
13.Bubbling Along Putty Edges:
Incomplete primer preparation and putty extending beyond its intended area can lead to bubbling. Ensure adequate sanding area and control the putty’s spread.
 
14.Treating Paint Biting:
Heat the affected area, apply a thin coat quickly, and bake it. Repeat this cycle until the biting is covered. Prevention involves preemptively addressing any suspect paint surfaces.
 
15.Smoothing Putty Along Lines:
Use moderate force when pulling the knife back, keeping the blade steady and using the tip to smooth the putty. Practice to achieve desired results.
 
16.Clear Coat with Orange Peel Effect:
Adjust the clear coat’s concentration and thinner ratio. Try semi-wet spraying or applying thicker coats, taking care not to cause runs.
 
17.Achieving a Smooth and Fine Finish:
Choose the appropriate spraying technique based on the color. For instance, use a combination of semi-wet and wet spraying for black pearls, and dilute metallic paints for light spraying.
 
18.Preparing the Base for Red Pearl Paint:
Due to its low opacity, start with a primer and red silver base coat (3 coats each). Finish with 3 coats of red pearl for a total of 6 layers.
 
19.Minimizing Sanding Marks:
Apply thin layers of putty and use rubber squeegees to smooth edges. Avoid wet sanding and over-working the putty.
 
20.Adjusting White Pearl Colors:
Focus on selecting high-quality, non-staining pearls. Use a thinner mix and apply two coats. Crystal pearls offer superior results.
 
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