Search the Community
Showing results for tags 'gutter rash'.
Found 1 result
Hi Guys, Posting a DYI again after quite some time. After I got new wheels for my car, the stock rims have been lying around and I thought of repairing them. Two of the wheels had nasty kerb damage thanks to the previous owner who was careless when parallel parking (wheels with the most damage were the ones on the left). When I was looking for a set of used BBS rims for my car, 90% of the rims I found had kerb damage. So the problem is pretty common and getting these professionally repaired and resprayed can cost a lot. If you are keen on doing this on your own, you might find this post useful. Things you need: Alloy wheel repair putty (eBay Link? This is a specially formulated putty to work with alloy wheels and I found it to be very effective. Sandpaper (200, 400, 800 wet, 1200 wet) Masking tape, scissors, old newspapers to mask Clean rags Water for wet sanding Wax and grease remover/Degreaser Old toothbrush Rubber gloves For illustration purposes, I have selected one area of a rim where you can see kerb damage. This is what I’ll be working with. Step 1: Prepare the surface for repair Using degreaser, toothbrush and a rag, scrub and clean the area and get the grime out of the damaged area. As you can see from the above photo, there’s a lot of grime in there. Next, use the coarse dry sandpaper to remove any material that maybe protruding out of the surface of the wheel. We need a smooth surface and the alloy wheel putty needs to fill in the scratches. The following photo is after sanding and washing the area. Step 2: Apply the repair Putty The putty is a stick and has the texture of crafting clay. It’s a two-part putty and you need to knead it between your fingers for the two parts to mix up (wear gloves for protection). Then roll it on a flat surface to form a very thin bead. Place the bead on the damaged area and press firmly. As the two parts start to react, you can feel the putty heat up. It hardens up rock solid within about 15 minutes. You can start sanding in about an hour. Remember not to apply excessive amounts of putty, because a lot of effort will be needed to sand it down if you do. The stuff is a bit harder to sand than regular body filler. This was the first spot I applied the putty to, I applied a little too much and had to spend a lot of time sanding it down. So once again, VERY little. This photo is probably a bad example of how to apply it, but you get what I mean. Step 3: Sanding Start with 200 grit dry sandpaper and work your way to a smooth surface. Use masking tape to prevent damage to the tyre. If you plan to do only a touch-up and not paint the entire wheel, you might need to mask the wheel as well, to avoid scratching it up. Run your bare fingers on the edge of the rim from time to time and feel the smoothness, you should be able to tell if there are imperfections. When the surface is smooth, move to wet sanding (first 800 grit and then 1200 grit to remove the fine scratches). If you plan to paint the entire wheel, water sand the wheel with these two papers so that the surface has a “blunt” texture. The new paint will stick better this way. After the sanding is done, the surface will look nice and smooth, no more kerb damage! It’s important to sand the putty down so that there is no excessive putty between the tyre and the wheel, you can insert the sandpaper into the gap and sand away, the original curve of the wheel needs to be maintained. As you can see from the above photos, I have sanded the putty all the way down to the rim so that the only bit remaining is the putty that fills the scratches. This is exactly what we need. If you feel like you need one more pass, go ahead and repeat step 2 and 3 again. This is it for the repair. All that is left now is to paint the area. I will cover that in a separate post. Let me know what you guys think and if you know of other ways of DIY methods to repair wheels. Thanks for reading! Cheers!