This stuff will dissolve blue loctite in just a matter of minutes. I had a rib mount on an expensive over and under that I used in still target competition. When I removed the mount I had loctite stuck to the top of the rib in two places. Acetone wouldn't touch it, but this stuff eat it up and didn't hurt the metal or finish. Spray some in a glass jar and dab it on the place with a wooden dowel. It takes about 5 minutes.