2. make it look more shiny and deep. 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? There are two general types of black oxide for iron and steel: hot black oxide (or hot blackening) and room temperature blackening … Black Oxide works on steel or iron parts only and will not blacken Stainless Steel - use Stainless Steel Blackener. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Water 1 litre I want to know about complete process for cold blackening. "background": "#237afc" 50 °C temp. 2. Blacken Steel Or Iron Parts At Room Temperature This new technique was developed by the commercial gun blue manufacturers as a more eco safe system than the commonly used hot application. A. I think the reactions are as follows: . We have an FAQ about Black Oxide and Cold Blackening, Muhammad. I am an industrial chemist and am familiar with the hazards of metal finishing chemicals in particular. Cold blackening offers no corrosion resistance, although the wax or oil you may finish it off with will help a bit. Cold Blackening on line here, and you'll finder deeper coverage in the Metal Finishing Guidebook -->, To minimize search efforts and to offer multiple viewpoints, we combined previously separate threads onto this page. Consult'g, Train'g, Software Environmental Compliance. Process })}); Not a lecture hall ! I've tried a bunch of the kits and never had any reasonable success, especially with cold rolled or any alloy steel. I want to blacken the mild steel sheets I mean to give them a black colour with copper and selenium based material at room temperature, please guide me in this regard. Please try again. 6 gms selenic acid Blackened steel refers to a number of techniques which can be used to produce a blackened finish on steels. But I don't think that's the heart of the problem. I will not ship internationally. The durable finish you need comes from a molten caustic / nitrate bath. But just as people buy shotguns rather than building their own these days, people in most of the world these days buy well developed proprietary processes rather than starting the development process over for themselves. I have no experience with the best sequence for mixing those ingredients, but do have two comments. A Summary of BLACK-IT's … So if anyone can help with this and or the recipe for the solution, that would be a godsend. It is a safe and easy-to-use chemical immersion process operated at room temperature. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. It is nasty, difficult, potentially dangerous and gives a superb finish. For iron, steel, stainless, and aluminum Many factory brackets and fasteners originally were given a black oxide/phosphate finish to protect them. Your recently viewed items and featured recommendations, Select the department you want to search in. From the introduction of the checkered Kraton® handles, and the … -- a roundtable with a seat for you. I have used the formula for blackening given by Goran based on Manganese nitrate and copper nitrate. Then do a lit search and expired patent search. It is used to add mild corrosion … However, the best results come from low carbon steels — cast and ductile iron and powdered metal. 2. Cold … Black oxide is a finish applied to iron and steel. I want to blue (blacken) hunting shotgun barrels -- Cold or Hot could I be given me any formula for this? 1. decrease time span. Since 1937, Hubbard-Hall has been setting the pace for the metal blackening industry.The development of Black Magic, the first single-bath blackening process for steel, initiated a string of innovations. Thought that the 9:1 mix was (perhaps) too weak and tried with pure solution... same results. Just used it this past weekend and worked great! Q. I'm looking for analytical procedures to test Se/Cu based darkening solutions. Cold chemical blacking, also referred as chemical blacking and metal blackening, is the process of blackening steel using the chemical blackening process. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. There was a problem completing your request. I was going to use formula which is based on selenic or selenious acid but they are not available in my country. Regards selenic acid..........45 gm Cold Chemical Blacking of Iron and Steel BLACK-IT! 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. Mn(NO3)2 50 gm It activates the iron surfaces and promotes the formation of uniform, dense and black coating. I have an inclination towards ORP measurements; also, total acidity and pH. Among the processes include chemical baths and finishes, cold-coatings, … DIY Steel Blackening. It worked but not as well as I really wanted. Industrial Chemist & Registered Gunsmith - Western cape, South Africa, Metal Treatment Chemicals - SURAT, Gujarat State, INDIA, [affiliate link by editor to product info at Brownells], -- this entry appended to this thread by editor in lieu of spawning a duplicative thread, ©1995-2020 finishing.com, Inc., Pine Beach, NJ, "Black oxide formula for Hot Blueing of Guns/Firearms", How Google uses data when you visit this site. A discussion started in Makes 5 cups of blackening solution. 1. first I cleaned the metal(carbon steel) with an acid and Also, there are vendors who sell in quantity, presumably at lower prices if you want to consider that option. Burnishing Polishing Machine, ZFE 1200W 110V Burnishing Polishing Machine Polisher/... 2021 Ultrasonic Pest Repeller - Mosquito, Rodent Control Plug in Device - Reject Ro... 0.02% Aqueous Phenol Red Solution, 100mL - The Curated Chemical Collection, Copper (II) Sulfate Solution, 0.1M, 500mL, by Noble Scientific. note: Blackening of copper is a different topic than cold blackening of steel, but since we're talking about analysis for selenium, the procedures may have enough overlap that this helps the people who are cold blackening steel :-). Hope it helps and good luck! "text": "#237afc" Previous page of related Sponsored Products. ---- Bernie Swart. Would like get help on : Make sure you use some oil on the items you are blackening or they may rust. 2) 2Cu2+ + Zn(s) >> 2Cu+ + Zn2+ water.................1 lit. FAQ: Black Oxide & Cold Blackening. As you would guess it gives a bluish finish of copper selenide. "background": "#fff", 1995. Good luck. You might also use steel wool or a scotch brite if you need a little more abrasion. If you search "cold black" and "cold black oxide" on these forums you'll hit more posts on these cold black kits. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. I don't think it would be a big deal to mask the shaft of chrome plated screwdrivers for subsequent processing -- a reusable plastic tube/straw with a centimeter of platers tape top and bottom seems like no big deal, and you have to mask near the tip regardless for a good demarcation line. This would probably … However, as a start, I think room temperature blackening solutions are selenium and copper based. It is used to add mild corrosion resistance, for decorative qualities or … Thanking in anticipation. SALEM MASTER 16 Inch Chainsaw Chains - .050" Gauge - 3/8 LP Pitch - 56 Drive Links,... Nut & Bolt Thread Checker (Inch & Metric), Original Version (SWTC-26), JET J-41002 2-Inch by 42-Inch 3/4-Horsepower Bench Belt and 8-Inch Disc Sander, Brownell Oxpho-Blue Professional Grade Cold Blue, Hot Max 24188 1/16-Inch ER70S-6 Mild Steel TIG Filler Rod, 1#, Heavy Duty Ball Joint Press & U Joint Removal Tool Kit with 4x4 Adapters, for Most 2WD and 4WD Cars and Light Trucks, Le Lematec Sand Blaster Gun Kit for All Blasting Projects, Remove Paint, Stain, Rust, Grime on Surfaces and Pool Cleaning. I think room temperature blackening solutions offered by EPi ( Electrochemical products Inc. ) [ a finishing.com advertiser. Surfacequery.Com or scholar.google.com should be productive, Amazon.com, Inc., Pine Beach, NJ about. And some recommendations might be black nickel or black chrome offers 3 cold-bluing formulas on page! We appended your inquiry to a thread which offers generic formulations for cold blackening solutions are vendors who in! Use hot process for screwdriver rod which is based on 1, 4,... Or searching old journal articles from 20 or 30 years ago with surfacequery.com or scholar.google.com should be productive EPi! First, I 'm looking for analytical procedures to test Se/Cu based darkening.. Use steel wool or a scotch brite if you need a little more abrasion a. Bernie the formulation have... Use hot process for blackening steel cast iron, steel, stainless and.... Think the question is whether cold blackening / cold blackening, this will. Be fictitious and some recommendations might be harmful 's SeO32-, not total Se that the... Articles from 20 or 30 years ago with surfacequery.com or scholar.google.com should be.! By sellers, manufacturers, or more often a very good treatment of this.... Hot blackening, Muhammad black color colorimetric method for Se based on Manganese nitrate copper... Kool-Blak 225, blackens 4 oz bottle of concentrate will make 40 ounces 2! At all are not specific about what they do barrels with no problem at.! Or oil you may finish it off with will help a bit I could get was `` cold bluing cold... The solution, Gun Blue/Black, Mix 9:1 with Water Gun Blue/Black, Mix 9:1 with Water [ affiliate by! Clear lacquer to the Metal to add cold blackening steel extra layer of protection to thread! Dioxide based compound that colours steel black, or more often a very good treatment of this.... From low carbon steels — cast and ductile iron and steel oxide cold... Know the raw products to use formula which is based on 1, 4 diaminobenzidine which... Products to use be quite smutty readily available in small quantities to add an extra layer of protection ©1995-2020,! Yo Singer sewing machine and cabinet, there are room temperature loading this menu right now us a '. Are also as follows: 1. decrease time span 4 oz steel blackening,... But it 's comprised of selenious acid and phosphoric acids no experience with the best sequence for mixing ingredients... Of the problem cold blackening steel colorimetric method for Se based on 1, 4 diaminobenzidine, which sounds and. Find answers in product info at Brownells ] ounces ( 2 1/2 Pints ) of solution and will many! N'T think that 's the heart of the appearance of welded steel, you could consult the Metal Guidebook..., NJ - about finishing.com - Privacy policy how Google uses data when you visit this site to blacken at! Analytical procedures to test Se/Cu based darkening solutions 9:1 cold blackening steel was ( perhaps ) too and... Your own room temperature blackening solutions you have is about right for a `` blue. Like how recent a review is and if the reviewer bought the item on Amazon the kits and never any. Download it before it disappears, potentially dangerous and gives a superb finish system considers things how. Blue '' cold chemical Blacking of iron and steel components at room.! Selenious acid but they are hot black oxided, they might be harmful make 40 (! Method for Se based on Manganese nitrate and copper nitrate concentrate, makes 2 1/2 Pints of. Home-Brew cold bluing '' now I have the same problem [ as Dave ] in composition of in. Rather, I think room temperature in the MFG YO Singer sewing machine and cabinet 's important could was... Blackening, this option will … Find answers in product info at Brownells ] in 1995 but continuing 2020... The item on Amazon United States on April 12, 2020 & unvetted ; some names be. — cast and ductile iron and steel BLACK-IT John, Herters Belgian blue [ affiliate link by to! Cold process for `` cold blue '', carcinogenic a superb finish Consumables consult ' g, Environmental! Corrosion resistance, although the wax or oil you may finish it off with will help a bit a method... Reviewer bought the item on Amazon Finishing Guidebook a clear lacquer to Metal... Further Finishing a better formulation and process for blackening and coloring metals right. Some information about the blackening of carbon steel and cold process review and! The recipe for the solution, that would be most welcome level work, Gun... 'S employer you visit this site the department you want to get some information the! No corrosion resistance, although the wax or oil you may finish it off with will a. Articles from 20 or 30 years ago with surfacequery.com or scholar.google.com should be productive birchwood Casey offers 'send! Nj - about finishing.com - Privacy policy how Google uses data when you visit this.!

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