Bob, I understood the rep to say it was, but, I don't remember asking that particular question. He mentioned it in conversation. I did the scratch test with a drywall screw on a lure I cleared with DN and I did the same when I started using KBS. I let 'em both sit about a week and the KBS was much harder to scratch to the paint than the DN. That, along with it's glossy finish and ease of use, sold me. I'm not trying to sell this to anyone else,...just sayin' it works for me.