Originally Posted by ChrisK
I've never used M#21, how easy is it to remove?
#21 is, by far, the easiest product to use I've ever tried. And it's not even close. It even comes off easily if you accidentally apply it too thick. It even wipes off of rubber trim pretty easily. Absolutely fantastic product. If you try it, do at least 3 layers but you need to wait 24 hours for curing between layers.
#20 is the same product but with a mild cleaning ability so you can't layer it but if you're only doing a single layer and you don't need any real polishing then #20 is a good alternative. I'vw only ever found it at body shop supply stores or online but it's usually about $15-$16 per bottle. Same for #21.