A. Hi Shayle. "text": "#237afc" Water...............1 lit I like to do it myself. } This one 4 oz bottle of concentrate will make 40 ounces (2 1/2 pints) of solution and will blacken many items. I have some ideas but some guidance would be most welcome. Thank you John, Herters Belgian Blue Among the processes include chemical baths and finishes, cold-coatings, … However, as a start, I think room temperature blackening solutions are selenium and copper based. We appended your inquiry to a long thread about how to formulate and monitor home-brew cold bluing / cold blackening solutions. I have an inclination towards ORP measurements; also, total acidity and pH. Blackening not only protects the steel … Personally, I find the best room temperature blackening, developed over a period of decades, to not be in the same class as hot black oxides. Q. I shall be highly thankful if someone could be given me a guideline for the following: I want to know which compound is used as a surface conditioner / surface activation before Room temperature cold blackening process. coper sulphate.......100 gm Cold chemical blacking, also referred as chemical blacking and metal blackening, is the process of blackening steel using the chemical blackening process. We have an FAQ about Black Oxide on line here as a quick intro. Compared to hot blackening, this option will … I have no experience with the best sequence for mixing those ingredients, but do have two comments. according to Detnner/Elze: Handbuch der Galvanotecnik,1966. Q. Hi there. Please try again. water..............1 lit, Cold black II: This would probably … I want to do it for corrosion prevention as well as to beautify the material. nitric acid...........50 gm "popup": { I was going to use formula which is based on selenic or selenious acid but they are not available in my country. 3. sometimes copper becomes visible. I have used the formula for blackening given by Goran based on Manganese nitrate and copper nitrate. To blacken the tip of rod. Hope it helps and good luck! Reviewed in the United States on December 8, 2015, Reviewed in the United States on October 5, 2018, Reviewed in the United States on March 13, 2015, Reviewed in the United States on August 25, 2014. worked very well, must take great care in cleaning steel before use. Your question might be answered by sellers, manufacturers, or customers who bought this product. Makes 5 cups (2 1/2 Pints) of solution. })}); Not a lecture hall ! Please make sure that you are posting in the form of a question. "button": { A Summary of BLACK-IT's … My preference would be for a cold process. Various processes are used for the oxidizing process. Reviewed in the United States on April 6, 2014. But it's SeO32-, not total Se that's important. The terms “black oxide” and “blackening” are often used interchangeably to refer to various treatments that can be applied to a ferrous metal (mild steel, stainless steel, copper, zinc) to produce a dark metal finish. Selenious Acid 6% Nitric Acid 5% Bernie Swart. SALEM MASTER 16 Inch Chainsaw Chains - .050" Gauge - 3/8 LP Pitch - 56 Drive Links,... 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We must be cautious about possible legal implications in trying to crowd-source proprietary formulations especially on this "no registration required" website where a competitor or disgruntled employee might try to blow trade secrets, but patents are public info and so easy to access these days :-), Q. Hi I found this recipe on this forum and am using to blue steel which will be clear powdercoated for decorative use, could you please help me with the best method to combine these ingredients? In addition to this cold bluing thread, we also have many other threads about blackening -- thread 11740, "Black oxide formula for Hot Blueing of Guns/Firearms" should help you with the hot black oxide formulas. Q. Hi there again. If you search "cold black" and "cold black oxide" on these forums you'll hit more posts on these cold black kits. If you need a product/service, please check these Directories: Jobshops Capital Equip. }, It also analyzes reviews to verify trustworthiness. 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