Awesome stuff, I used some tonight on a shotgun barrel that needed touching up. All I can say is it worked great. I applied the stuff 3 times to match the arleady existing blueing an almost perfect blend in, then I buffed it lightly with steel wool and then gave the entire barrel a good rub down with some rem oil. you can hardly tell where I touched it up at unless you look real close. deffinately the best 4 dollars ever spent. Anybody else have as good of an experience with this stuff as i did??