Birchwood Casey

Birchwood Casey Spanish Perma Blue Liquid Gun Blue offers you the best ways to touch up scratches and worn spots or even completely reblue most guns. It will give a non-streaky, even blue-black finish to steel (except stainless). Perma Blue provides great blueing to metal that has already been thoroughly cleaned and is free of rust. Please note: Perma Blue Liquid Gun Blue will not blue stainless steel, aluminum, or non-ferrous metals.