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You can improve your results by doing two things: 1. Brand: Logix. Holy crap, did that reaction hurt like hell. However, there are certain characteristics differences between the materials so knowing clearly how to blue stainless steel is really important. ", the wrong quality steel. it washes off with water. Theres a reason why I buy up clapped-out guns and stuff where people look at me with a WTF?! This is a great time to point out that leaving guns in gun cases, especially the woolen/fleece cases, in the back of a closet, is one of the most sure-fire ways to rust the value completely out of a gun. Slow rust blueing can take a week or more to accomplish, but it is a durable blue job like no other. Great column, and thanks for all the responses to various questions and comments. Heat source You will require at least one burner for bluing salts and two hot water burners. I use a pickling paste. For this reason, it is considered not to add any appreciable thickness to precisely-machined gun parts. NaOH will quickly and completely dissolve aluminum. This article was co-authored by wikiHow staff writer. Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. Please note: As you are working with heat, please be smart, use your common sense, do the bluing process in a well ventilated area and keep a wet towel to hand. The easier of the two methods, hot bluing only requires some degreasing agent, a heating apparatus (a blow torch is perfect for this), and any kind of oil. Keep heating the steel until you notice a blue color form on the metal. This crucible was heated to 730C (1,350F) for up to 6hours (the longer the heat was applied the thicker the case hardening). Next comes the main part. Be patient in the first few minutes as the metal needs to reach the temperatures where it changes colour! YouTube - Nitre bluing a few gun parts. It is always essential to remove all oils from metals you want to blue, even if the cold blueing solution claims you dont need to do so.