Will remove blueing from a firearm
In the AGI video on Parkerizing, Gene Shuey uses Blueing Solution Cleaner to remove blueing from irregular surfaces...it did a great job in the video, removing blueing from a pistol in seconds. Brush on, rinse, neutralize in baking soda and water (the cleaner is an acid and needs to be neutralized), then rinse again. I haven't tried it yet...I'm just getting into metal refinishing...but I have an old Colt Police Positive Special that I'm going to try it on. I'll report back with my first hand experience.


