
This makes it convenient to inspect all scratches, the depth of the scratches, and whether the rim is cracked, such as cracks or deformations on the rim surface. Before painting, use old newspapers to isolate the edges of the rim to prevent the spray from getting on the tires. First, use water sandpaper dipped in water to sand the scratched area, repeating the process until it is smooth. Then apply putty evenly, which can be done in multiple layers.

I also scratched my alloy wheels before and had good results with a DIY repair. First, sand the scratched area with sandpaper, gradually progressing from coarse 400-grit to fine 2000-grit, rinsing while sanding to avoid overheating. After smoothing, apply wheel-specific filler, level the dent with a scraper, and wait for complete drying. Then spray primer to enhance adhesion, followed by color paint after 30 minutes - apply 3-4 thin layers with 10-minute intervals between coats. Finally, spray clear protective coating to prevent scratches, and avoid washing the car for 24 hours. All tools can be bought on Taobao for about 60 RMB total - the key is to be patient and take it slow.

Just helped a friend repair scratched rims a few days ago, and the process was actually quite simple. Buy a rim repair kit and park the car in a well-ventilated area. Thoroughly clean the rims with a cleaner, especially removing all grease. Light scratches can be faded by applying repair wax and rubbing repeatedly, while deeper scratches need to be filled with putty. Remember to shake the paint well before spraying, and spray evenly from 15 cm away in smooth strokes—two coats give the most uniform results. Take precautions by wearing a mask and gloves. The whole process takes about three hours and saves over 300 compared to going to a 4S shop.

For scratched rims, it's recommended to handle them case by case: Minor scratches can be treated with repair paste and a sponge. Deeper scratches require professional equipment for repair—first remove and clean the rim, then fill the grooves with specialized putty, sand it smooth after drying. Painting demands accurate color matching, and imported baked paint yields better results. Repairing brushed rims is the most challenging, requiring CNC machines to re-brush the surface. I advise beginners to avoid touching metal rims, as oxidized aluminum is harder to handle. If severely deformed, replacing them outright is safer, after all, rims are critical to driving safety.

Repairing scratched rims requires attention to detail. Before sanding, use tape to protect the tires and brake discs to avoid overspray. For scratches deeper than 2mm, apply filler putty in thin layers, allowing each layer to dry completely. Color matching is crucial—it's best to test small paint patches for comparison. If orange peel texture appears after painting, wait until fully dry, then lightly sand with 2000-grit wet sandpaper and polish. After rim repair, a dynamic balance check is recommended to prevent high-speed vibration. These tips are shared for DIY-loving car enthusiasts.

It's truly heartbreaking when new alloy wheels get scratched. My repair experience involves a five-step process. First, clean the wheel with degreaser to remove oil stains, then sand the edges of the scratches to create a smooth transition. Don't apply too thick a layer of filler putty as it may peel off easily. Masking protection before spraying paint is crucial. The key step is the final procedure: wait 20 minutes after spraying the base color before applying the clear coat, then carefully inspect for any missed spots under sunlight. Full curing takes 24 hours - avoid water contact during this period. If scratches expose bare metal, apply rust-proof primer before color touch-up. The entire process requires meticulous operation, but the sense of accomplishment upon completion is immensely satisfying.


