LOVE this stuff. I've used Novus for years on electronics, eyewear, auto parts, bathroom plastics, fiberglass, everywhere. I use Novus #2 for daily polishing of plastics and #3 for light to medium scratches, it just takes longer to work than #2. Works Ideally, follow #3 with #2 but do it yourself #3 alone gives a distinct shine you stick with it. #1 is just a spray coat, but it works fine too. (Tip: Avoid #3 hardened bits that can form around the hole - if they get on the polishing clothโฆ