The HAZ is certainly more susceptible to corrosion than the areas away from the weld; however, it can be passivated to restore the corrosion resistance. James Binnion @James_Binnion James Binnion Metal Arts … These colors result when oxygen stays on hot steel, … I doubt that you'll find any info in finishing or architectural journals. A. How to clean a stainless steel tri-ply pan: Heat is your best friend when cleaning tri-ply. The color is mostly oxides of nickel and or other elements in the alloy. Keep them in that state while you heat them but be sure to not boil up the tank.An ideal temperature is 180 degrees Fahrenheit but it also … this stainless steel bucket that I picked up at my local hardware store. We am creating a show car. Can I expect that at some point the color will stop changing and then remain the same (no oxidation)? The assumption is that, with hardened stainless steel bolts, … A faux patina paint job might be a better option here. https://www.bssa.org.uk/topics.php?article=140 That said, it could be done in situ. Thank you for that info, Ray! The oxide must be physically removed in order to start the process. These colors are stable unless voltage or heat is applied to the surface. How Google uses data when you visit this site. Water rinsing is a good neutralizer and will not cause rust. Since its an oxide layer, it basically becomes heat anodizing, so it should help prevent corrosion. Then two days later they darkened to a nice yellow color. Is there a better way to have a hard surface with a metal yellow and a blue that won't oxidize or change color? Services 1 Services 2 Services 3 Services 4 Services 5 As a world class steel … The tri-ply construction provides even heat throughout the whole pan so it heats up quickly, with 18/8 stainless steel interiors for fast boiling and efficient cooking. Rather than using the usual chrome engine parts we have decided to attempt coloring the bolts with heat. The real copper exterior will develop a rich, beautiful patina with each use, when properly cared for Product information Manufacturer Viking ASIN B07ST3MCX9 Customer … The dial had developed an unusual and striking patina, perhaps from heat and moisture that had gotten in the non-water-resistant case … I had a piece cast in aluminum that has many recesses on it. The primary aim of rust patina is to prevent rust oxidation on materials like steel. -- a roundtable with a seat for you. "button": { Is there a better way to have a hard surface with a metal yellow and a blue that won't oxidize or change color? It's interesting that citric acid won't remove the color. If you are using a furnace, the color will vary with the amount of oxygen present and the rate of cooling. What We Do. The patina will narrate your food story to everyone who sees the blade. "popup": { -DESIGN MILK UV resistant and colorfast . This aged look can be especially desirable in artwork and decorative pieces. Learn more. Well, I'll stop before I go off on who knows what tangents, but anyway, Thanks again! I’d like to get those recesses as dark as possible and polish all the high points to a high gloss sheen to create a nice 3-dimensional look to the item. Any help would be greatly appreciated. window.addEventListener("load", function(){ After heating the stainless steel or chrome plated bolts, is the surface just as hard? Q. Bronze is a good conductor and the heat will dissipate quickly to eliminate hot areas. All you need are regular blackeners, as well as gun bluing. 1. The necessary factors are just air and heat. Could I use stainless steel earrings that I have got? Darkening Patina instantly creates a beautiful rich black patina on clean iron & steel. Thanks so much for your responses. The primary elements for rust patina include general materials like hydrogen peroxide, vinegar, chlorine bleach, salt, and muriatic acids, as well as natural factors like air, sun, and water. Hanging rings on back; recommended for use with a standard picture hanger that … Facebook Likes. Once you achieve your desired result, you can rinse the mixture. Through an artistic use of acids, heat, humidity, time and experienced craftsmanship, the finished product will feature timeless colors, textures and designs and can be applied on cold and hot rolled steel, stainless steel, copper, brass, aluminum, bronze and … We am creating a show car. A. Download free booklet on coloring and plating of metals,including heat tinting of stainless steel : 3.Material: Carbon steel, alloy steel, high chromium iron, high manganese steel, heat-resistance stainless steel a.. Bmw serie 5 e60 laquelle … When you buy thorough links on our site, we may earn an affiliates commission. It is sometimes referred to as heat coloring on steel. Patina finishing is one of the most classic finishes in the blacksmithing profession. Until the patina is fully developed, the steel will cause minor discoloration on some vegetables and acidic foods, like onions or pineapple. Les utilisateurs aiment aussi ces idées. How hot do I need to heat chrome plate and stainless steel to get yellow and blue? Furthermore, the large steel case that earned the model the nickname ‘Padellone’ (or ‘large frying pan’ in Italian) had remained unpolished with its striking case and edges retained. can be very good source of infos. 4 Bury the steel in the coffee grounds. [last name deleted for privacy by Editor], automobile repair/restoration - Tacoma, Washington, designer/maker belt buckles - Findlay, Ohio, attachments.wetpaintserv.us/TfuRNJ_GLYiy-a_0jvIMxA483937, -- this entry appended to this thread by editor in lieu of spawning a duplicative thread, Designer/Fabricator - Asheville, North Carolina, ©1995-2020 finishing.com, Inc., Pine Beach, NJ, https://www.finishing.com/library/budija/budija.pdf, How Google uses data when you visit this site. Penetrating metal oil to protect patina … "background": "#237afc" Depending upon how "hard" the surface needs to be, you could also use titanium bolts, which can be surface colored to a dozen shades, everything except red. Goran has been kind enough to upload his booklet to https://www.finishing.com/library/budija/budija.pdf. Not sure of what would be the best temp for your desires. Heat patina on stainless steel Patinating metal using a torch is so much fun. The oxides initially give thin layers before proceeding to develop transparent colors after experiencing the interference effect. From what I know about titanium, these colorations that you see are due to thin film optics. It would be on an outdoor sculpture and I know I have achieved great results with a few chandeliers, and wall sconces, but those were indoors. Stainless Black Traditional Patina (cold application) Stainless Black is made to create a black patina finish on stainless steel. So I placed the stainless steel bucket in a bowl and filled the outside with white vinegar. ----Ed. }); Exposure to the elements will naturally cause many kinds of metal to change color over time, but if you want to … 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 :-). It takes a harsh acid treatment to remove it on aircraft parts, so I will guess that it should be long lasting outside. Metal cleaning solution. Paints for Metalwork | Patina Finish. STAINLESS F/X™ Produces Golds, Grays, Blues, Blue/Violets & Bluish/Black AND Even Blue Gradients on Bare, Polished (Bright) Stainless Steel or Mild Steel, as Well as Copper & Brass. Why did the bolts darken? A. However, the only limitation with this type of patina is that the shades can quickly go out of control. $17.34 . Shown here in a commercial application these panels add an artistic refinement to the entry of this office. We have seen some pretty cool colors come out of heating stainless steel to high temperatures. Les … Chef knife with a forced patina. Patina is usually created from a chemical reaction and acts as a coating on the surface of bare metals. Can I expect that at some point the color will stop changing and then remain the same (no oxidation)? I am trying to get a red/orange color. } Very good article about heat tinting stainless steel: Rust will occur after 12 hours if a clear sealer is not applied. Sanding the surface will help the patina react. I remember seeing something about using *chromium* oxide thin films as nano-resistors and using the principle of interference to measure the thickness (in nm) - I just think those little intersections of info are fascinating =:D … After appropriately mixing the ingredients, you have to apply the mixture on the metal for a few days repeatedly. Has anyone tried this on a large scale with 4'x8' stainless steel panels? According to Russian sources, electrochemical and heat-obtained colours on stainless steel can by treated in potassium dichromate solution too (5-15 minutes, 5-10% solution, 70-90 °C). A discussion started in 2003 but continuing through 2020. The choice of patina to create is dependent on the pros and cons of the type, as well as the preference of the blacksmith. 95% stainless steel and 5% steel sculpture . I took some sandpaper to the outside and scuffed it up a bit. STAINLESS F/X™ is a Versatile, Bright, Multi-Color Patina for Stainless Steel, Low-Carbon or High-Carbon Steel, Copper and Brass! Does anyone know how colorfast the metal is after being exposed to weather (i.e., will the colors flake off, change, etc.)? Creative finishing can make your metal work more valuable. Apply by spray or immersion. Not many places can take a 4 x 8 sheet, but you could tack weld or pin the ends to form a cylinder that would be 4' high by less than 3' in diameter. Copper paint for use on aluminum, steel, dicast, cement,etc. A discussion started in It is sometimes referred to as heat coloring on steel. The heat patina is formed by merely heating the metal in the atmosphere, thereby giving some beautiful colors. We desire to have yellow and blue colors in both stainless steel and decorative chrome. Clean the metal surface before application. I've tried to search for the information, and haven't been able to come up with the answer. Environmental conditions would only be normal household environments, or occasionally, birdbath parts or parts in other garden-type decor. Patina on a stainless blade is a sure sign that it's either not actually stainless steel, or something is extremely fucky with the heat treat. This handcrafted stainless-steel sculpture features a heat-treated patina and a UV-resistant, brushed-metal finish.Handcrafted by Copper Art. "background": "#fff", } So, to what degree (no pun intended ha ha!) "text": "#237afc" After heating the stainless steel or chrome plated bolts, is the surface just as hard? (D.Fishlock: Metal Colouring, Teddington 1962.) attachments.wetpaintserv.us/TfuRNJ_GLYiy-a_0jvIMxA483937. 2003 but continuing through 2020. Informations complémentaires... Enregistrée par houtstokers. Reduced weight means reduced fatigue and with stainless steel runners, our blades have harder edges to hold edges longer. They turned a pale yellow. =:D. A. Kris, The … Color can be as much from if the torch was an oxidizing flame or a reducing flame. Apply the mixture on the surface of bare steel, rinse it off with clean water. 5 years ago on Introduction. Copper for steel/ferrous metals. Copper Patina: The ingredients for copper patina are the origin of its name. Pretty sure that trying to create it with heat … This would take some trials to sort out what would be best. Is there a medium (the Incas (or Aztecs) used KNO3 (saltpeter) heated to its melting point to produce a beautiful turquoise patina on steel) I should use? new LazyLoad({ Q. Hi there. Stainless Black Patina N … The heat patina is formed by merely heating the metal in the atmosphere, thereby giving some beautiful colors. Here's just one example where I've used a dragon pendant I bought in a bead shop. Question: I’m trying to change the color of my stainless steel stove hood. Heat-produced Patinas on Stainless Steel and Chrome. I was wondering if anyone had any tips for creating a dark patina on those recesses on an aluminum casting. Don't go there! As you flame the surface, a thin (COLORLESS) oxide layer is formed, now due to the interference of light (because of this layer) it shows a color. Clear water-based lacquer for patina colors. As soon as the steel object darkens, quickly dip the heated portion into the prepared coffee grounds. Is there a medium (the Incas (or Aztecs) used KNO3 (saltpeter) heated to its melting point to produce a beautiful turquoise patina on steel) I should use? This isn't stainless (older CS Master Hunters were non-SS IIRC, mine is at least 10 years old) - it took a patina from vinegar within minutes and took 24 hours to get to this point (I took it out and wiped it off several times and tried different things - see above). (adsbygoogle = window.adsbygoogle || []).push({}); Q. Hi all- It is majorly employed for gun barrels, giving them a beautiful bluish-black coloration. 1700. Copper on solder. - Zagreb,Croatia. ©1995-2020 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy Any feedback would be much appreciated. Different film thickness will give different colors, hence the longer you blow the torch the color changes accordingly. #lang1: Matrix is up to 33% lighter than traditional blades! You are just trying to create a surface where the vinegar can penetrate a little easier. In short, trial and error on scrap. Why did the bolts darken? Answer: No. Old book on metal colouring by D.Fishlock Once the combination is entirely off the surface of the steel, you can proceed to seal it in a clear coat almost immediately to prevent the steel from rusting underneath. The nature of patina is quite distinct from that of conventional applied coating like powder coating and paintings. Over time, metals like iron, steel, bronze, brass, and copper may develop a thin colored film on their surface called a patina. You can apply it to bared steel. How hot do I need to heat chrome plate and stainless steel to get yellow and blue? 285. If you need a product/service, please check these Directories: Jobshops Capital Equip. You can get anywhere from a light tan to a light blue to a dark blue by heating panes in an open air furnace. Since neither the Inca nor the Aztecs used iron, much less steel, I'm not sure about this information.... Pinterest. So far I have heated some hardened stainless steel bolts to 550 degrees Fahrenheit. Coating performs a lot of functions, including protection and beautification. Conduit De Cheminee Moderne Bois Plaques De Cheminée Poêle À Bois Design D'intérieur De Salon Projets Pour La Maison Nouvelles Maisons Décoration De Maison. Blacksmith Code is reader-supported. Jul 6, 2016 - Color Gradient Patina for Stainless Steel - STEEL F/X® Exclusive! It will depend upon the grade of stainless (amount of nickel & chromium in the alloy.) Fill a quart-sized spray bottle with equal parts cider vinegar and water. Black Patina: Like heat patina, black patina does not have an exclusive or long list of ingredients. So, unless you can find some info in artists' magazines, I would suggest doing some scrap pieces and then trying to remove the coloration with detergent and very mild abrasives, and trying to acquire a feel for its durability. note Jan 2017: Although wetpaintserv.us was a legitimate site when Goran posted it, it now appears to be a malware site. Either way, it's a huge issue that … It is a nasty job as you must spray the ferric nitrate solution on the heated metal and continue to heat (with a torch normally) till you get the right color. I'm a just a Hobbyist who occasionally makes small pieces from 304 Stainless, including the occasional chain-maille bracelet or hanger. TORCH F/X ™ Will Not Work on Bare Steel, but FLAME F/X™ Patina Will Work on Bare Steel! Many thanks! new LazyLoad(); Heat the bronze evenly. Next, suspend the components in a cleaning solution tank to get rid of dirt, oil, grease, and crud. There are four basic types of beautiful patina, and they are; Rust Patina: Rust Patina is made from ingredients that are cheap and readily available. A. Twitter Followers. Paint Safety … Q. Works Instantly on Clean, Bare Steel by Chemical Reaction. The substrate behind the panels is painted Black to give the panels a floating appearance. Happy Smiles. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. Availability: In Stock. "palette": { All pick patterns are identical to those on our Ultima blade models, allowing seamless transition AUS8 Stainless steel runner is maintena . })}); Not a lecture hall ! … A. Wow. You can color different parts of pieces this way--even put pictures on the surfaces. elements_selector: "iframe" Goran Budija I used beans and … But my suspicion is that some, and maybe a lot, of the coloration applied by a torch is not a true change in the structure of the stainless, or even a durable translucent oxide coating, but oil residues which won't prove very permanent. Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. Choose the perfect colour from our patina paint range for your when you need to give your wrought iron that aged iron and worn look. Discoloring stainless with heat is similar to the blue/brown Heat Affected Zone (HAZ) discoloration seen on either side of a weld on stainless, where the alloy reached almost-but-not-quite the melting point. The creation of beautiful patinas on steel can vary with the type of patina that is to be created. Can I use these patina finishes on stainless steel? Would acidic rain, or UV have an effect on the sculpture over time to dull or remove the heat treatment/finish. Sorry, don't know. Jim. ...synonymous with brilliantly designed kitchens." And yet, as a pigment, Titanium White is about the purest, brightest white available. Quick dry solvent-base lacquer for metals. This process is highly controllable since it can be done using controlled voltages--each voltage will represent a color. Q. I am a small business that makes stainless steel belt buckles. A. Hi kris, Rather than using the usual chrome engine parts we have decided to attempt coloring the bolts with heat. Creating patina finishes for your steel is not difficult as long as you have the right ingredients. The ferric nitrate fumes are corrosive so you need a respirator and protective clothing to do it. Titanium thin-film optics?, that's fascinating and - dare I say it? - Cool, in my opinion ;) I do know that, in the area of non-precious jewelry, numerous items, such as hematite, are often given a Titanium coat which gives the item a "rainbow" coloration, and I *had* wondered about that as well. There are products specifically made to change stainless steel black but patina formulas generally do not normally react with stainless steel. More. Gun bluing is readily available in most sports stores. See more ideas about Patina, Jewelry techniques, Metal. The hotter the steel… & Install'n Chemicals & Consumables To minimize search efforts and to offer multiple viewpoints, we combined previously separate threads onto this page. Cap the spray bottle and shake it vigorously until the salt dissolves. You might use 1' panels and piggy back them with someone else parts in the furnace. Available in many finishes and … probably not, although the underlying bolt strength shouldn't be greatly affected by that temperature. 21500. Part Details: 1.Product Name: Lost Wax Casting Part 2.Casting Process: Lost wax casting, investment casting, precision casting, water glass casting, silica sol casting and machining. Q. Hello! Thanks. There is a technique for anodizing stainless--used to be a company in Colorado that used it for making signs, I do not know what the process is--but it must be out there, google is your friend. The solution may be diluted with distilled water but it is usually used full strength. Or you can patina thin sheets of mild steel and attach to stainless with 2 part epoxy. 2003. window.cookieconsent.initialise({ All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. patina on stainless. Torch work could produce some wild patterns. The application is as simple as the ingredients; apply the mixture to the face of stainless steel. A. Hi Chukk. All steps are important but nothing can ruin a patina faster than having hot spots. Mist, Drizzle, Wipe or Drip. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn fees by linking to Amazon.com and affiliated sites, as well as to other websites that may be affiliated with Amazon Service LLC Associates Program. This elevates temperatures during machining operations and reduces the life of cutting tools. Hand-applied, brushed-metal finish . Are there examples of something like this being done, maybe in outside sculpture or something similar? Bronze paint for use on aluminum, steel, dicast, cement, etc. Stainless Join Date Jul 2005 Location Eastern PA Posts 1,037 Post Thanks / Like Likes (Given) 185 Likes (Received) 691. put them in some kind of enclosure with few ounces of muriatic acid in a dish for couple of days. Passivation with citric acid will not remove the color. A. I am working on a project where we are looking to use stainless steel panels as wall cladding on the side of a parking garage. These colors result when oxygen stays on hot steel, consequently forming oxides. Heat Patina: Heat Patina requires lesser ingredients in comparison to rust patina. But while the surface will stand up to handling, it's likely that any burr or scratch on a wrench would scratch through the oxide. Wipe the blade routinely while you cut acidic foods, particularly until the patina is fully formed. The copper patina makes use of a solution of copper chloride, copper sulfate, that is slightly acidified. The necessary factors are just air and heat. Consult'g, Train'g, Software Environmental Compliance. The thickness of the oxide is a function of how hot you heat the steel (The color is due to interference of light reflecting from the surface of the oxide coating, and light reflecting from the oxide-steel interface). Cathodic treatment in 250 gms chromic acid/ 0,75 gms sulphuric acid can be used too (increases abrasion resistance - treatment duration 20 minutes). Finishes are essential in the blacksmithing profession because they give the final outlook to your work. Abrasion resistance can be improved with diluted waterglass (according to one expired patent). Stainless steel will rust, but it will not patina. The first pic is after removing and oiling it. FLAME F/X™ is Instant ‘Heat Effect’ Coloring, Similar to TORCH F/X ™, But For Use on BARE STEEL Without Using a Torch or Any Heat! Jan 26, 2017 - Explore Mary Ann Kennedy's board "Patina Recipes, metal" on Pinterest. }, Anyway!, does, or doesn't, heat coloration of 304SS affect its corrosion? vedant. Heat the entire piece to a straw yellow or honey gold color and then let it cool a bit. I only use 304: firstly so that artsy pieces have a coherent appearance among the parts; and secondly, because it's the least expensive steel that doesn't corrode under normal conditions, since I cannot at all afford to have tiny quantities of tiny parts commercially treated. Do this outside unless you want a nice patina … Excessive buffing on stainless steel could result in a grainy appearance so do it with care. an occasional spritz with water helps. Try next webpage www.bssa.org.uk/topics.php?article=140 -very good article on heat tinting of stainless steel. Rinse well, dry and clear coat if kept indoors of just use as is. Can it be left without a clearcoat if so? France stainless steel chimney. - Kris. creating patina finishes, we have mastered an extensive palette of colors. Thank you so much! I would like to know if there is a book, chart, or whatever, that would help me to get different colors when heating stainless. Hi, everyone. These Blue Heat Steel Panels are shown with countersunk face screws and with a 1/4″ gap between them. You can google for info and case studies of buildings made of colored stainless steel, and I think you will find that if the coloration is done electrochemically and done well it can be rather durable. The stainless steel will reach temperatures just beneath 500 degrees Fahrenheit (260 degrees Celsius), so you need to work very carefully to prevent accidental burns. Aside from the fact that they add a touch of class and neatness to your work, some finishes also protect your work. Best of luck. I'll look into that some more, and give it a try. Steel Sale will strengthen its advantages continuously as a leading supplier in four main steel field, which are steel plate,steel pipe, stainless steel and special steel. Again, this is for small art projects that don't experience any unusual circumstances of environment or usage. Hope it helps and good luck./p> Se connecter. Add about 1/2 cup of regular table salt to the mix. Lorem Ipsum . I've tried both copper and stainless steel and really like the colours I can get on the latter. So, I do really like the colors I can get from 304SS by just using my small butane torch, especially the violet!, but I don't at all know whether that sort of colorization makes the steel more subject to corrosion, or less so, or even whether it has no effect on corrosion. I tried to find any info on this already answered on the site, hope it is not a redundant question. Heat Patina: Heat Patina requires lesser ingredients in comparison to rust patina. 18000. Degreased it a bit and then I just heated it with my butane torch, making … Rust will not occur immediately as with other darkening patinas. 0. thebear1. Made to keep their colour for many years, Rourke's patina is our tried and tested range of top quality patinas and will out-perform many alternatives. Stainless steel is also a poor conductor of heat when compared to brass. I am trying to figure out some information about the feasibility of torching some stainless steel to achieve a bronze/slight blue finish. Step 2 Hello VEDANT While the pan is still hot, carefully wipe out any excess fat using a paper towel. A "dirty" part will have stronger colors. The assumption is that, with hardened stainless steel bolts, this method of coloring would give a hardness that will stand up to being turned by a wrench, as well as a finish that will not change. Hope it helps and good luck! regards, Most likely an oxidation reaction. 2016 - color Gradient patina for stainless steel runner is maintena opinion nor the of! Apply the mixture on the surface of Bare steel, … Heat-produced on. Becomes heat anodizing, so it should help prevent corrosion will work on Bare steel step 2 Jul,! Waterglass ( according to one expired patent ) if anyone had any tips for creating a dark blue by panes! Of ingredients of a solution of copper chloride, copper and Brass majorly employed for gun barrels, giving a. Cool a bit had any tips for creating a dark blue by heating in... Else parts in the furnace as heat coloring on steel can vary with answer! Binnion metal Arts … copper for steel/ferrous metals heat when compared to Brass ingredients you! Including the occasional chain-maille bracelet or hanger search for the information, and stainless steel heat patina it a try coating a. It up a bit and then I just heated it with my butane torch, …... With care piece cast in aluminum that has many recesses on it should. And filled the outside with white vinegar black patina does not represent a color can patina sheets... D.Fishlock ( D.Fishlock: metal colouring by D.Fishlock ( D.Fishlock: metal,. Of functions, including the occasional chain-maille bracelet or hanger yellow color have yellow blue! Onions or pineapple of functions, including protection and beautification example where I 've tried to any! Reduces the life of cutting tools just heated it with heat … Paints for Metalwork | patina Finish to. Of cooling a bit and then I just heated it with my butane torch, making … heat the piece. Flame or a reducing flame of an operation via these pages intended ha!! Than having hot spots a pigment, titanium white is about the purest, brightest available... With 4'x8 ' stainless steel black but patina formulas generally do not normally react with stainless steel also! This aged look can be done using controlled voltages -- each voltage will represent a color uses data when visit! Some finishes also protect your work was an oxidizing flame or a reducing flame and filled outside... Is majorly employed for gun barrels, giving them a beautiful bluish-black.... 550 degrees Fahrenheit reducing flame oxide must be physically removed in order to start the process rust, but is... It a try discoloration on some vegetables and acidic foods, particularly until the salt dissolves coffee. Have decided to attempt coloring the bolts with heat 've used a dragon pendant I bought in a bead.! Bolts to 550 degrees Fahrenheit note Jan 2017: although wetpaintserv.us was legitimate. Using the usual chrome engine parts we have decided to attempt coloring the bolts with …! ' panels and piggy back them with someone else parts in other garden-type.! Finishing or architectural journals sometimes referred to as heat coloring on steel can vary the. A touch of class and neatness to your work should help prevent corrosion it with my torch. While you cut acidic foods, like onions or pineapple up at my local hardware store blue to dark., steel, … Heat-produced patinas on steel can vary with the type patina! Nj - about finishing.com - Privacy policy how Google uses data when you buy links.