Ron@Optimum Posted October 14, 2021 Share Posted October 14, 2021 The following is from an Optimum customer: I can recommend Optimum Paint Prep for another use, beyond its normal application. It is excellent for removing residue and deposits on the inside of car windows. Oftentimes these result from petroleum-based vapors and conventional window cleaners either are ineffective or leave streaks which have to be polished out and often return. Optimum Paint Prep handles this problem easily and cleanly.I have been testing Optimum Clear Coat Restorer as a coating for polycarbonate headlights which have lost their factory UV-protection after polishing; thus far, results are encouraging. LostVulpine, KIS76@, habs33 and 1 other 3 1 Quote Link to comment Share on other sites More sharing options...
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