There are several ways to remove paint from a rubber surface, whether you splattered paint on it by accident, or want to remove paint you applied intentionally. Even dried paint can be removed from rubber surfaces with the right approach. Removal methods depend on the type of paint used.
Things You'll Need
Sink or bucket
Gently scratch high-gloss paint from the surface with a scraper. Start with a small area and work your way outward if the surface is large. Take care not to scratch the rubber underneath.
Soak a sponge in warm water to remove matte-emulsion paint. Wet the painted area thoroughly and allow the warm water to penetrate the paint. Wipe the painted area with the sponge. Add pressure to the sponge as you wipe, if necessary.
Apply a small amount of rubbing alcohol to the painted area if warm water and scraping don't do the job. Allow the alcohol to penetrate the paint. Soak a sponge with warm water and a mild detergent. Wipe away the alcohol with the sponge; the paint should remove easily.