Know a few that leave it on there and let it wear away naturally...on both their bike and car tires. The mold release will help protect the tire from ozone and UV effects while delaying the activation of the anti-aging, anti-oxidants, and anti-ozone protection in the tire formulation...in other words, it just helps stretch out the tire life span. But a high pH detergent will remove the mold release as well as rubbing alcohol or window cleaner.