i've used it on my '01 spirit 750 with my wrapped pipes. had the pipes wrapped for about 4 years now. i put black wrap on, but when i got too close to the pipes with the pressure washer once, i learned that there's just a dye in the wrap and had some scraggly looking pipes afterwards. read about this stuff and decided to give it a shot and it made the wrap nice and black again afterwards. this was awhile ago and the wrap has faded some from exposure, but it works quite well for bringing the color back to the wrapping on pipes. as for heat retention, i have no clue, as i don't think it helps out at all there...