What are the common methods for removing old paint?
2 Answers
Common methods for removing old paint: 1. Manual paint removal; 2. Mechanical paint removal; 3. Sandblasting paint removal; 4. Electric sanding; 5. Chemical paint removal. Manual paint removal is a commonly used method in painting work and is the only method for partially removing old paint films. It mainly relies on tools such as scrapers, putty knives, wire brushes, and sandpaper to remove old paint from the surface of vehicle components. Mechanical paint removal uses electric or pneumatic tools, such as wire wheels, wire sanders, and dry/wet sandpaper sanders, to replace manual scraping and sanding. Sandblasting paint removal involves using compressed air, high-pressure water flow, or mechanical centrifugal force to project abrasives, sand, or metal shot onto the old paint surface, removing the old paint through impact and friction.
When I do car repairs myself, there are quite a few common methods for removing old paint. The most commonly used is chemical paint remover—spray it on, wait for the paint to soften, and then scrape it off easily, which is suitable for beginners. Mechanical sanding is also good, using an electric sander or hand sandpaper. It takes time but is cost-effective and precise. Using a heat gun to soften and peel the paint is also quick, as long as the temperature is controlled properly to avoid damaging the car's base. Sandblasting is highly efficient but expensive and noisy, so it's generally not for home use. The dry ice method is trendy now—eco-friendly but not widely adopted. Remember to wear goggles and gloves, and ensure good ventilation, especially with chemical removers due to their strong odor. Personally, I recommend starting with paint remover—it's simple and safe. When sanding, begin with coarse sandpaper and then switch to fine sandpaper for polishing. Once, I stripped the paint off an entire car myself—it took two days, but the results were fantastic.
