Youre probably overworking the rubber, changing it chemically, and actually sealing it over. for dirt i would use wintergreen on tires it cleans them and softens them. If youre unsure about tire prep regulations for your race, you can simply check directly with the race organizer or the sanctioning body. You can make your own tire softener at home by combining a number of ingredients. High flash mineral spirits or charcoal lighter is a good tire conditioner, as well as WD-40. Cleaning them also helps you spot pinhole leaks that youd otherwise miss. May 14, 2014 #1 ; Has Anyone Had The Experience Of Messing With A Prep Forumla Of 50% Toulene And 50% Xylene. Deep and frequent sipes allow tire treads to flex, build heat and fire more quickly on heavy tracks, but can lead to overheating and chunking on dry-slick tracks. It is an ingredient is some paint strippers. // -->
