What are the methods to repair exposed metal due to paint loss?

[Eli]

Here are the detailed methods for repairing exposed metal due to paint loss: 1. Paint Pen Repair Method: Using a paint pen with a color similar to the car's paint to apply on the scratched area is the paint pen repair method. However, the adhesion of the repaired paint is not strong enough and can easily peel off. 2. Spray Painting Method: Using traditional touch-up paint methods to repair scratches. The downside is that it causes significant damage to the original paint and takes a long time to complete the repair. 3. Computerized Spray Painting Method: This method combines computerized spray painting with new technology to implement deep scratch repair techniques. It requires accurate color matching and minimizing the repair area as much as possible. After treatment with special solvents, it allows the new and old paint to blend better, achieving optimal adhesion.

[MacMargaret]

A piece of paint on my car was accidentally scratched off by a stone, exposing the metal underneath. I felt it was necessary to fix it immediately. The method is actually quite simple. First, clean the area with a damp cloth. If there's rust, gently sand it off with sandpaper. Then, apply a layer of rust-proof primer and wait about 20 minutes for it to dry. Once dry, apply the matching color paint, and after it's completely dry, apply a layer of clear protective coating. This process can be done at home, and the tools can be purchased as a set from an auto parts store, including sandpaper, primer, and color paint, which is affordable and saves time. If the area is large or in a prominent position, like my front bumper last time, it's better to go to a professional shop for a smoother paint job. Remember, if left unrepaired, rainwater can corrode the metal and cause rust, making it harder to fix later. Usually, avoiding gravel roads and washing the car regularly can also prevent paint from chipping.

[LaCali]

I've encountered paint peeling that exposes the metal parts a few times. Experience tells me it's best to have it handled by professional repair shops. DIY attempts often leave flaws, and rusted areas cost more to fix later. The shop technicians will first use tools to thoroughly clean and sand away all rust traces, then apply special anti-rust primer to prevent corrosion, followed by spraying perfectly matched automotive paint, and finally adding a clear coat for enhanced durability. Though slightly more expensive, the results are reliable with guaranteed appearance restoration. I recommend owners act immediately without delay, as oxidation accelerates damage. Use pH-neutral cleaners when washing, and park in shade to protect the paint. Pro tip: Applying scratch-resistant film on new cars can help prevent such issues.

[DiMia]

If the car paint has chipped and exposed the metal, you can easily fix it yourself at a low cost and quickly. After cleaning the damaged area, lightly sand off the rust with sandpaper, apply the primer from the touch-up paint kit, and once dry, apply the main color paint. This method is suitable for small areas like door edge dents. The operation takes less than half an hour, and the tools can be purchased online for just a few dozen yuan. Make sure to buy the correct paint color code to avoid color mismatch. If there's already rust, treat it first to prevent spreading. Avoid bumpy roads in daily driving to protect the paint.