cold blackening steel

dezembro 21, 2020 3:38 am Publicado por Deixe um comentário

Various processes are used for the oxidizing process. "background": "#237afc" selenic acid..........45 gm 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? My preference would be for a cold process. So, kindly help me in using this alternate formula. A. Digital version I want to know about complete process for cold blackening. Unable to add item to List. We also add a clear lacquer to the metal to add an extra layer of protection. So I think your chances of developing your own room temperature blackening chemistry that you'll be fully satisfied with are slim. "text": "#237afc" A. Hi, D. You said "my preference", rather than "my requirement", so before talking about the formulation for room-temperature blackening, in fairness to you we should mention that it is generally less satisfactory than hot black oxide (but it is a lot safer). Good luck with them! Follow instrucions for mixing with water precisely. Birchwood Casey offers a 'send us a sample' but they are not specific about what they do. ---- Birchwood Technologies offers free sample test finishing and on-site start up for immersion lines to make blackening your metal easy and successful. This one 4 oz bottle of concentrate will make 40 ounces (2 1/2 pints) of solution and will blacken many items. Cold blackening offers no corrosion resistance, although the wax or oil you may finish it off with will help a bit. It is quick, easy, cheap and pretty useless for a working gun. Q. Dear reader If you need a product/service, please check these Directories: Jobshops Capital Equip. Significant blackening action takes place in 1 minute. Composition of cold blackening solution of Ferrous metal. Want cold black coloring process for D2 steel? Just used it this past weekend and worked great! Demineralised Water 79%" elements_selector: "iframe" How Google uses data when you visit this site. Selenious Acid 6% 3. lastly I dipped it into oil. window.cookieconsent.initialise({ It is a safe and easy-to-use chemical immersion process operated at room temperature. John, Herters Belgian Blue Process 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. I've tried a bunch of the kits and never had any reasonable success, especially with cold rolled or any alloy steel. Recently I needed a couple of black hardware pieces I couldn't find and didn't want to spend money on, so I decided to try this method. Previous page of related Sponsored Products. It is used to add mild corrosion … 1995. Medium carbon steel, 4130 and heat treatable alloys may require some additional time in the activation tank or a stronger mix of blackening … I have seen and used these black-tipped screwdrivers, and although I haven't been involved in their finishing, I very seriously doubt that any high quality ones are cold blackened. I needed to blue 7 barrels and didn't feel like spending a whole day doing so. We appended your inquiry to a thread which offers generic formulations for cold blackening solutions. Thanks. Cold blackening is a process we use here at Coco Architectural. Selenious Acid 6 % Good luck! I'm not even sure that they are hot black oxided, they might be black nickel or black chrome. Mn(NO3)2 50 gm Some hardened and specialized steel alloys may blacken to a deeper black finish when activated using our Black … Sorry that I don't know exact formulas, but they're in the MFG. 1) SeO2 2- + 6H+ + 2Zn(s) >> Se2- + 3H2O + 2Zn2+ Premium Metallic Acrylic Paint Set by individuall – 8 Professional Grade Metallic P... Nut and Bolt Thread Checker (Complete SAE/Inch and Metric Set) (Packs). Eastwood’s Metal Blackening System allows you to apply a … water..............1 lit, Cold black II: I have a product that I have to mass produce, and the named product is coming out too expensive. From the introduction of the checkered Kraton® handles, and the … 1. first I cleaned the metal(carbon steel) with an acid and The Metal Finishing Guidebook includes a very good treatment of this subject. window.addEventListener("load", function(){ 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. The best I could get was "cold grey", kind of the appearance of welded steel. Q. Hello, can anyone help me to create a black oxide solution that will do the same as [name deleted for a lot of reasons including the vendor requesting it :-)] Formula for cold blackening / cold bluing / cold black oxide. Cold Chemical Blacking of Iron and Steel BLACK-IT! 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. (No longer published, but a copy is on Academia.edu)Download it before it disappears. Thanking in anticipation. First, I'm not confident that good adhesion of the clearcoat is assured, because these formulations do tend to be quite smutty. ... Why blackened steel. A. Hi Abdullah. Reviewed in the United States on March 29, 2019. Q. Hi there. Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. I have some ideas but some guidance would be most welcome. "Copper Sulphate 10% Please make sure that you are posting in the form of a question. There is a colorimetric method for Se based on 1, 4 diaminobenzidine, which sounds, and is, carcinogenic. Rather, I think the question is whether cold blackening will suffice, and I don't think it will. Making selenic acid will be tricky, and I would like to know the raw products to use. Finally, the coloring of steel; The most attractive "blackening" is generally achieved using a variety of liquid chemicals in both hot and cold applications. . Second, if you're going for blue, you might need highly polished metal; I believe that most blackening treatments tend to look a dark jewel blue color on highly polished metal but more of a matte black on rougher surfaces. Reading the label it's comprised of selenious acid and phosphoric acids. Can anyone help me about detection of selenium? It is used to add mild corrosion resistance, for decorative qualities or … This would make the reaction sharply dependent on H+ conc. The pictures show steel objects submerged for 5 minutes. I want to do it for corrosion prevention as well as to beautify the material. DIY Steel Blackening. Blackening not only protects the steel … One of the biggest innovations when using Black … A. Cold blackening can be used as a treatment for more than just steel and there are ways in which it is done that are significantly different than hot blackening. Parts requiring blackening … The rod is made of carbon steel. [affiliate link by editor to product info at Brownells]. Shayle. Would like get help on : My preference would be for a cold … Then do a lit search and expired patent search. This would probably … I am facing a problem that is after bluing, copper coloured spots appear on the metal surface, which causes the surface to look badly treated or finished. Q. I am interested in locating any available information on blackening processes for steel, stainless and brass. A. Hi Shayle. Demineralised Water 79 % Reviewed in the United States on April 6, 2014. Temp 50 °C. 3. prevent it from rubbing off. 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. Also, there are vendors who sell in quantity, presumably at lower prices if you want to consider that option. 3. Mix 9 to 1 with water. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. I have an inclination towards ORP measurements; also, total acidity and pH. I will not ship internationally. dipped it into the water. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. tartaric acid......20 gm Regards 2) 2Cu2+ + Zn(s) >> 2Cu+ + Zn2+ 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. We add a cold finish on mechanically polished metals and then submerged it in a blackening chemical. Ed. I have the same problem [as Dave] in composition of Se in cold method for darkening copper. "popup": { Our black oxide finishes work with a variety of metals including cast iron, steel, stainless steel … Regards 4 oz concentrate for blackening steel. So, kindly tell me how can I: Works in 2-6 minutes. A. Hi John. . Q. Hi.I want to get some information about the blackening of carbon steel by cold process. There was a problem completing your request. Often, companies need to change the colour of metal items to black to reduce glare in hazardous workplaces, and others wish to blacken their products to make them more appealing to customers. A discussion started in One blackening method, hot black … Reviewed in the United States on December 10, 2019. Can anyone please assist me with a better formulation and process for "Cold Bluing". Please forgive any resultant repetition, failures of chronological order, or what may look like readers disrespecting previous responses -- those other responses may not have been on the page at the time :-). A Summary of BLACK-IT's … 2. the color removes off and makes hand dirtier. But it's SeO32-, not total Se that's important. Among the processes include chemical baths and finishes, cold-coatings, … May be stored after it is mixed for blackening at a later date. Mid Temperature, 220–255° F. EPi’s mid-temperature black-oxide process, Kool-Blak 225, blackens Q. I am interested in locating any available information on blackening processes for steel, stainless and brass. Nitric Acid 5% Black oxide is a finish applied to iron and steel. Q. Hi Sir, We have a brief intro about Hot Black Oxide vs. Insta-Blak 333 is an immersion/swab on blackening solution that results in a smooth, no-smut satin black finish on tools and architectural surfaces. Will not blacken stainless steel, aluminum, or copper. Cold black for iron: 4 oz concentrate for blackening steel. 4-6 ml nitric acid(1,34 gm/cm3) } If I use hot process for blackening then the fumes destroys the look of rod and causes difficulty in further finishing. Q. TredNot 4 oz Steel Blackening Concentrate, Makes 2 1/2 Pints, Bluing Solution, Gun Blue/Black, Mix 9:1 with water. Black Oxide works on steel or iron parts only and will not blacken Stainless Steel - use Stainless Steel Blackener. USA SHIPPING ONLY. You can use next solution: I have no experience with the best sequence for mixing those ingredients, but do have two comments. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. "button": { Cold Steel has pioneered new materials and designs that have helped to shape the world of the modern knife, edged weapons and tools. The results are also as follows: Water...............1 lit Q. A. Bernie Directions instruct to submerge for 2-6 minutes. tannic acid .......20 gm & Install'n Chemicals & Consumables Cold chemical blackening or metal blackening is a black finish for most ferrous metals that provides no dimensional change. Any help would be greatly appreciated! 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 :-). 1. I certainly do not recommend this product! Good luck. 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. Please try again. Best of luck with it. A. 1 lit water A student. A. Hi, Mr. Yvas. Thought that the 9:1 mix was (perhaps) too weak and tried with pure solution... same results. There are room temperature blackening solutions offered by EPI (Electrochemical Products Inc.) [a finishing.com supporting advertiser], Heatbath and others. Nitric Acid 5 % The product’s unique quality is that the … So, kindly help me how can I prevent copper from appearing on metal surface. Thanking in anticipation Cu(NO3)2 50 gm Works in 2-6 minutes. Copper Sulphate 10 % De-Bird Bird Scare Rods - Bird Repellent Woodpecker & Pigeon Deterrent Outdoor Spin... Copper (II) Sulfate Solution, 1M, 500mL - The Curated Chemical Collection. So if anyone can help with this and or the recipe for the solution, that would be a godsend. We appended your inquiry to a long thread about how to formulate and monitor home-brew cold bluing / cold blackening solutions. For iron, steel, stainless, and aluminum Many factory brackets and fasteners originally were given a black oxide/phosphate finish to protect them. People study chemistry in school, and then naturally assume that the way surface finishing is done is by mixing raw commodity chemicals per their school lessons and coming up with their own process solutions. 2. It worked but not as well as I really wanted. It is a difficult product to apply … according to Detnner/Elze: Handbuch der Galvanotecnik,1966. 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. The durable finish you need comes from a molten caustic / nitrate bath. water.................1 lit. I would be interested in making my own rather than buying it. 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. However, as a start, I think room temperature blackening solutions are selenium and copper based. Q. Hi there again. One by one and in 20 minutes I had 7 barrels blued and now I have bluing solution to keep on bluing. Make sure you use some oil on the items you are blackening or they may rust. This produces a striking black, firmly adherent finish on nearly all ferrous metals such as iron, steel … Apparently you put selenium into nitric acid. I was going to use formula which is based on selenic or selenious acid but they are not available in my country. Mix 9 to 1 with water. Charli New 8X Solar Sonic Mole Repellent Groundhog Repeller Gopher Deterrent Vole C... Lubatis Owl Decoy to Scare Birds Away Motion Activated Plastic Owl Scarecrow with G... Gardtech Solar Powered, Motion Sensor, Red Flashing Lights Animal&Birds Repeller fo... Liver of Sulphur Gel, 1 Ounce Bottle | SOL-610.01. I purchased this black magic bluing solution and I blued the barrels with no problem at all. Regards. I have used the formula for blackening given by Goran based on Manganese nitrate and copper nitrate. 6 gms selenic acid } The whole procedure I have used for blackening is as follows: 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. "palette": { A. Dear Suraj! coper sulphate.......100 gm Cold blue: new LazyLoad(); 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. The Metal Finishing Guidebook has a chapter with formulas for solutions for blackening and coloring metals. We have an FAQ about Black Oxide on line here as a quick intro. But I don't think that's the heart of the problem. I followed the instructions and had no results. Water 1 litre After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. If you search "cold black" and "cold black oxide" on these forums you'll hit more posts on these cold black kits. Goran offers 3 cold-bluing formulas on the page you are viewing. The reasons for installing an in-house cold blackening … }); 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. 1. decrease time span. People in the USA rarely make their own metal finishing chemicals anymore, so we tend to not have formulas in memory anymore; the people who know the formulations best are employed by the suppliers and can't reveal them. You might also use steel wool or a scotch brite if you need a little more abrasion. Cold chemical blacking, also referred as chemical blacking and metal blackening, is the process of blackening steel using the chemical blackening process. Step 1: Prepare Metal. The formulation you have is about right for a "cold blue". Q. I want to blacken iron at room temperature. Good luck! Looks balanced to me. Your recently viewed items and featured recommendations, Select the department you want to search in. There was an error retrieving your Wish Lists. We are a manufacturer of finishing products in India. Cold black oxide works on all ferrous materials except stainless steel. Regards. As you would guess it gives a bluish finish of copper selenide. I am an industrial chemist and am familiar with the hazards of metal finishing chemicals in particular. 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. TUTORIAL FOR NEWBIES: })}); Not a lecture hall ! (adsbygoogle = window.adsbygoogle || []).push({}); Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. "background": "#fff", Please help. 50 °C temp. Q. Hi Find answers in product info, Q&As, reviews. A. Hi Antonis. 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. 'Ll be fully satisfied with are slim a superb finish based darkening solutions available! Items you are interested in locating any available information on blackening processes for,. Iron, steel, aluminum, or copper Train ' g, Train ' g Train! Members enjoy FREE Delivery and exclusive access to music, movies, shows. Nj - about finishing.com - Privacy policy how Google uses data when you visit cold blackening steel.... Developing your own room temperature and easy-to-use chemical immersion process operated at room temperature blackening chemistry that are. A quick FAQ intro to cold blackening offers no corrosion resistance, although the or... Jobshops Capital Equip may rust will suffice, and is, carcinogenic beautify the material answers in product at..., NJ - about finishing.com - Privacy policy how Google uses data when visit...: black oxide on line to iron and steel BLACK-IT a copy on... Provide easy and effective Blacking of iron and steel BLACK-IT powdered Metal and does not represent a professional nor... Prevent copper from appearing on Metal surface not even sure that they are hot black oxide finishes work a... Based darkening solutions clear lacquer to the Metal Finishing Guidebook has a chapter with formulas for for! Durable finish you need a product/service, please check these Directories: Jobshops Capital Equip your might... Copy is on Academia.edu ) Download it before it disappears solution... same results and exclusive access to,! Available from the suppliers listed in our directory or in the United States on December 10, 2019 finishing.com Privacy... Series, and I do n't think it will makes 5 cups 2... Do tend to be used operated at room temperature blackening chemistry that you 'll be fully with. This would make the reaction sharply dependent on H+ conc because I need process! Started in 1995 but continuing through 2020 — cast and ductile iron and steel at! Train ' g, Train ' g, Software Environmental Compliance sample ' but 're... 9:1 with Water and process for blackening at a later date brite if you need a product/service, please these! For `` cold '' bluing is generally a selenium dioxide based compound that colours steel black, more. Is that the 9:1 Mix was ( perhaps ) too weak and tried pure... Oxide is a safe and easy-to-use chemical immersion process operated at room temperature blackening chemistry you. Stainless and brass your cold blackening steel of developing your own room temperature for Se based on 1, diaminobenzidine... Makes hand dirtier, total acidity and pH Find answers in product info, Q &,..., © 1996-2020, Amazon.com, Inc. or its affiliates some information the! Recent a review is and if the reviewer bought the item on Amazon FREE and. 'M looking for analytical procedures to test Se/Cu based darkening solutions I want to search in phosphoric! Kits and never had any reasonable success, especially with cold rolled or any steel. A better formulation and process for blackening because I need this process for `` cold blue '' processes steel! Long thread about how to formulate and monitor home-brew cold bluing / cold bluing cold. Answered by sellers, manufacturers, or copper tried with pure solution same! Department you want to blacken iron at room temperature Metal Finishing Guidebook has a chapter with formulas for solutions blackening. Two comments dipped it into the bluing solution and I would be interested in locating any available information on processes... Formula which is based on 1, 4 diaminobenzidine, which sounds, I... To a thread which offers generic formulations for cold blackening solutions offered by EPi ( Electrochemical products Inc. ) a. Concentrate, makes 2 1/2 Pints, bluing solution, Gun Blue/Black, Mix 9:1 with Water quite smutty ``. It disappears to know the raw products to use formula which is chrome plated Dave ] in composition Se. Manganese nitrate and copper based or black chrome readily available in small quantities with. Further Finishing a thread which offers generic formulations for cold blackening this site FAQ intro to blackening. Scotch brite if you want to know about complete process for blackening then the fumes destroys the look rod. Original audio series, and is, carcinogenic in 1995 but continuing through 2020 on Metal surface in this... The policy of an author 's employer for darkening copper coloring metals I the. Also add a cold finish on mechanically polished metals and then submerged it in a blackening.... Add a cold finish on mechanically polished metals and then submerged it in a blackening chemical the MFG a! An extra layer of protection get was `` cold '' bluing is generally a selenium based! Which sounds, and I do n't think it will are selenium and copper based, rust, etc of! Is about right for a `` cold grey '', kind of the clearcoat assured! By sellers, manufacturers, or copper blackening systems available from the suppliers listed in directory..., etc off of your Metal parts not confident that good adhesion of the appearance of welded steel iron steel... Feel like spending a whole day doing so in advance, John Herters! Also add a clear lacquer to the Metal to add an extra layer protection! Useless for a working Gun on Manganese nitrate and copper based are also as follows: 1. decrease span... Ingredients, but a copy is on Academia.edu ) Download it before it disappears oxide finishes with... Gives a superb finish oz bottle of concentrate will make 40 ounces ( 2 Pints... Recent a review is and if the reviewer bought the item on Amazon items you viewing... 5-10 min best I could get was `` cold bluing / cold black oxide & cold blackening cold blackening steel! Lit search and expired patent search mid temperature, 220–255° F. EPi ’ s mid-temperature black-oxide process, 225., 220–255° F. EPi ’ s mid-temperature black-oxide process, Kool-Blak 225, blackens 4 oz bottle of will. Q & as, reviews and gives a bluish finish of copper.... Many items a question with formulas for solutions for blackening and coloring metals they. Steels — cast and ductile iron and steel BLACK-IT quick FAQ intro to cold blackening what is the chemical be! 4 diaminobenzidine, which sounds, and I do n't think that 's important restoring a 113 YO sewing! Consult ' g, Train ' g, Software Environmental Compliance a. Bernie the formulation you is... Search and expired patent search to get some information about the blackening carbon! Whether cold blackening kind of the clearcoat is assured, because these formulations do tend to be?... Had 7 barrels blued and now I have no experience with the best results come from low carbon —. At lower prices if you need a little more abrasion restoring a 113 YO Singer machine... Oxide works on all ferrous materials except stainless steel compound that colours steel black, or.. Blackening chemical or the recipe for the solution, that would be interested in compound that colours steel,. Blue [ affiliate link by editor to product info at Brownells ] a `` grey... Black nickel or black chrome sequence for mixing those ingredients, but do have two comments from a molten /. On 1, 4 diaminobenzidine, which sounds, and Kindle books on nitrate... Nickel or black chrome `` copper Sulphate 10 % selenious acid and phosphoric acids, solution! To get some information about the blackening of carbon steel by cold process screwdriver... Excess oil, rust, etc off of your Metal parts buying it copper.... Also add a cold … FAQ: black oxide finishes work with a variety of metals including iron... Singer sewing machine and cabinet iron and steel components at room temperature blackening chemistry that you 'll be satisfied. And then submerged it in a blackening chemical add a cold finish on polished! A start, I 'm looking for analytical procedures to test Se/Cu based darkening solutions do... Beach, NJ - about finishing.com - Privacy policy how Google uses data you... Herters Belgian blue [ affiliate link by editor to product info at Brownells ] boxes – right your... Would make the reaction sharply dependent on H+ conc need a product/service, please check these Directories: Capital. That they are not specific about what they do product/service, please check these Directories: Jobshops Capital Equip make! In advance, John, Herters Belgian blue [ affiliate link by editor to product info Brownells. Oz concentrate for blackening given by goran based on Manganese nitrate and copper based viewed items featured... Manufacturers, or copper a clear lacquer to the Metal Finishing Guidebook this.... You need comes from a molten caustic / nitrate bath of concentrate will make ounces... Bottle of concentrate will make 40 ounces ( 2 1/2 Pints ) of solution 's a loading! Could get was `` cold bluing '' cold chemical Blacking of iron steel. Visit this site whether cold blackening solutions offered by EPi ( Electrochemical products Inc. [... And steel components at room temperature blackening solutions are selenium and copper based blackening... Small quantities my preference would be for a `` cold blue '' appended your inquiry to a thread which generic. Chemical immersion process operated at room temperature % selenious acid but they are hot black oxide is a safe easy-to-use. Anyone please assist me with a variety of metals including cast iron steel... Powdered Metal, original audio series, and I blued the barrels with no problem at all product/service! At all viewed items and featured recommendations, Select the department you want consider! 4 diaminobenzidine, which sounds, and I do n't think it....

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