Birchwood Casey Perma Blue Paste Gun Blue - 2oz

Easily touch up scratches and worn spots with the Birchwood Casey Perma Blue Paste Gun Blue - 2oz. This paste gives a non-streaky, even blue-black finish to steel (except stainless) and provides great bluing to metal that has already been thoroughly cleaned and is free of rust. Does NOT blue stainless steel, aluminum, or non-ferrous metals. The Paste Gun Blue is slower to darken than Liquid Gun Blue, but will build up a denser finish.