How to Remove the Original Paint from a Car?
2 Answers
Manual paint removal method, mechanical paint removal method, sandblasting paint removal method, electric grinding method, chemical paint removal method, caustic soda paint removal method, etc. Here is a related introduction about car painting: 1. The concept of original factory paint: Original factory paint refers to the paint applied to the car before it leaves the factory. Original factory paint is not just the most visible color layer; car paint generally consists of 3 to 4 layers. Due to factors like process, environment, and cost, later touch-up paint only includes one or two layers of the original factory paint. Moreover, the original factory paint is hardened and dried at around 200°C, while later touch-up paint cannot undergo such high-temperature baking because the car is already assembled with many heat-sensitive materials inside. 2. Precautions for full car repainting: For some car owners, due to poor-quality repair shops, after bodywork and repainting, the entire car's paint surface may become uneven, and issues like paint dots or impurities may appear. In severe cases, paint runs may even occur. Therefore, it is recommended that car owners choose reputable 4S shops or repair shops for repainting. Avoid washing the car or exposing it to other items: For a freshly painted car, it is best not to wash it before the paint has fully dried. It is also advisable not to drive the car in rainy weather to prevent watermarks on the paint. Additionally, avoid letting the paint come into contact with substances like chemicals or grease, as these can damage the car's paint surface. Some repair shops may produce subpar results due to the painter's lack of skill and the use of low-quality paint, giving the paint a cheap appearance. Furthermore, some paint jobs may have significant color discrepancies. Therefore, it is recommended that car owners inspect the paint color under sunlight for a more natural assessment.
I've tried removing car paint myself before, and sanding seems the most economical but time-consuming method. Start with a coarse-grit sandpaper on large areas, applying even pressure to avoid deep scratches. Then smooth the surface with fine-grit sandpaper. For thick or peeling original paint, chemical paint removers work faster: apply, wait 10-15 minutes for softening, then gently scrape with a putty knife. Always work in well-ventilated areas wearing gloves, masks, and goggles. After removal, exposed metal rusts easily - clean thoroughly and apply primer immediately. Test on small areas first to prevent damage. Be patient throughout; rushing compromises safety and risks fires or body damage.
