Will W. Posted August 3, 2017 Share Posted August 3, 2017 Hello everyone. I wasn't exactly sure where to put this, but it is a finish that I wish to apply to a knife (and several old gun barrels as well) at some point, so here we are. I'm just curious as to what the exact ratios of water, sodium hydroxide, and potassium nitrate are. Like 10 g of KNO3 per gallon of water and 30 g of NaOH per gallon as an example. I understand the process fairly well, and I understand it's basic dangers (get it? Basic?), and I realize you can buy pre mixed solutions to use, but I have these ingredients already (perks of being a backyard chemist) and I'm just curious as to the proper mixtures. I couldn't find much information regarding this through my research. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 4, 2017 Share Posted August 4, 2017 May I commend to your attention "Firearm Blueing and Browning" by R.H.Angier originally copyrighted in 1936 Chock full of recipes, many using toxic chemicals. Written for the gunsmith. I don't know if it's available online; I have the book in mint condition as a "Fayetteville Public Library Discard" (Fayetteville AR) Quote Link to comment Share on other sites More sharing options...
Will W. Posted August 4, 2017 Author Share Posted August 4, 2017 Thanks Thomas. I'll check online. If I have no luck there, the library should be able to get a copy. Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted August 4, 2017 Share Posted August 4, 2017 Brownell's has blueing information too. Quote Link to comment Share on other sites More sharing options...
Will W. Posted August 6, 2017 Author Share Posted August 6, 2017 Alright, thanks. I figured to get any information out of them, I would have to buy their product. Lol. Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted August 7, 2017 Share Posted August 7, 2017 Also look into this product www.dulite.com Quote Link to comment Share on other sites More sharing options...
rhitee93 Posted August 8, 2017 Share Posted August 8, 2017 I don't have my copy handy, but Roy Dunlap's book on gunsmithing has a number of recipes for blueing baths. This is an old book written in the 40's I think, but has a lot of neat metalworking info. Quote Link to comment Share on other sites More sharing options...
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