I have limited experience- specifically, I've used it to paint prop firearms. One of our actors slipped, fell and smacked the butt of one into the ground. The stock broke, the paint (DuraCoat) didn't even chip. Twenty shooting days on my thesis film, and the prop weapons were used on all twenty. Various repairs to the weapons, rendered with both a glue gun (note: glue gun glue becomes soft in 100+ degree weather) and epoxy, and neither disturbed the paint. Raw mixed epoxy didn't even mess with the Duracoat. An 'oops' during a major repair meant that freshly mixed bondo dropped onto a duracoated surface, and it didn't even leave a spot, just flaked off after drying. Only problem was, the cheap plastic on part of one of the weapons (the part was actually made from a large water gun) DuraCoat wouldn't adhere to properly at all. I've heard some people having problems with it adhering to really cheap plastic rails and rail covers, it might be the same plastic. On the stuff it adhered to properly (five other prop weapons), I could wipe the guns down with Hoppes and it didn't mess with the duracoat. Just my experience....