AJKPlastiDip.com has been using Plasti Dip on cars for over 5 years and we have experienced zero damage to the cars we have dipped, peeled and redipped. However every car and every situation is unique. Even with Plasti Dip's great track record, we still recommend dipping a small test spot on your car before dipping the entire thing. Especially consider longer test phases with cars that have been repainted. Every paint shop will use different types and amounts of clear coat - and Plasti Dip can't possible guarantee the exact same result on every unique paint job.