Diy Rim Painting . Cover the floor with a tarp to catch the. Shake the colorful rubber spray film hard to mix the content evenly before we begin the color spray on the trd wheels. Easy way to diy spray paint rims from carthrottle.com I rolled cards and taped them. Once you have finished, then give the wheels a wipe with a dry cloth and then using a 1,000 grit sandpaper, sand the surface to create small invisible abrasions which will help the. I shoved cards between the rubber and rim.