Birchwood Casey 12pc Perma Blue Liquid Gun Blue Finishing Liquid Kit. Everything you need for a professional-looking first-class job is included. Choose from the fast-acting Liquid Gun Blue Kit and the deep dense Paste Gun Blue Kit. NOTE: PERMA BLUE Liquid Gun Blue will not blue stainless steel aluminum or non-ferrous metals. Features:The proven way for touching up or completely reblueing most guns. The fast-acting liquid gives a non-streaky uniform blue-black finish. Generous supply of everything you need to do a first-class job. Specifications for Birchwood Casey Perma Blue Liquid Gun Blue Finishing Liquid Kit: Manufacturer: Birchwood Casey Included Accessories: Standard Quantity: 12 Package Contents: Birchwood Casey Perma Blue Liquid Gun Blue Finishing Liquid Kit Birchwood Casey BC-13801: 12pc Perma Blue Liquid Gun Blue Finishing Liquid Kit