Perma Blue Liquid Gun Blue: A #1 bestseller, PERMA BLUE Liquid Gun Blue is the proven way to touch-up scratches and worn spots or to completely re-blue most guns. It will give a non-streaky, even blue-black finish to steel (except stainless). All parts to be blued must be thoroughly cleaned with a metal cleaner such as Birchwood Casey Cleaner-Degreaser and any rust must be removed before applying the blue.
- 3 fluid ounce plastic bottle.
- It will give a non-streaky, even blue-black finish to steel (except stainless)
- The best ways to touch up scratches and worn spots or even completely reblue most guns.