I’m going to show you several ways to do it. How-To: Stainless Steel Etching (2 Updates) Mar 6 th, 2014 by larsan. I have done this in everything from stainless steel containers to plastic containers and even plastic trays used for wallpaper with halogen lights warming it up. We used 9V batteries, alligator leads, and Q-tips dipped in a salt-vinegar solution. You’ll also see a blackish sludge being produced. To speed up the etching it helps to warm up the vinegar, at room temperature de-scaling a blade may take over night. Experiment: Once you have gathered the supplies, the experiment should take 30-45 minutes, depending on the intricacy of the design. How-to: Stainless Steel Etching Using a cutting plotter we made a mask, which we then etched onto a stainless steel cup by using vinegar, salt and a direct current. Stainless steel is an extremely common metal, and it's highly useful since it's so good at resisting corrosion. Imagine your custom logo all over your homebrewery! You heard me right. Approximately 2 tablespoons of salt per Liter of water. Make It From Metal also participates in affiliate programs with Bluehost, Clickbank, CJ, ShareASale, and other sites. It might help to use a fine-tip Sharpie to trace out the shape first. Gotta cut down pressure to 40psi on a pressure pot. Despite its name, stainless steel actually does need to be cleaned and maintained on a regular basis. Vinegar. There is no magic ratio here. ... sodium chloride (NaCl - common table salt) to keep the copper sulfate from coating the steel with a deposit of copper that will stop the etching process. The other end is attached to the battery positive terminal. Absolutely every flaw in the tape will show up in the etch. Copper Etching Solution - no power required: 100ml Vinegar – Distilled White Vinegar – diluted with water to 5% acidity (Meijer) 100ml Peroxide – 3% solution (Meijer) 7ml Salt – ~ 1/2 tsp. Redditor itsgus came up with a brilliant way of etching stainless steel using salt and vinegar, which can be combined to make an electro-etchant. Take a cotton bud and soak the tip of it into the mixture of vinegar and salt, and then attach the vinegar part to the negative terminal with the black clip. There are also other chemicals that form acid in water, such as copper sulfate (CuSO4), and ferric chloride (FeCl3). The longer you etch, the deeper it goes. ... As for the ratio: We just added salt and stirred until the vinegar was saturated. Simple way to etch metal and Knives using a 9 volt battery and table salt. Mist your stainless steel item. Easy to find at any drugstore, the one I use is 3% peroxide in pure water, 1.20€ 1/2 litter. Step 5 Allow the etching primer to cure for four hours before you apply any paint to the surface. It is best mixed in a 1 to 1 ratio with sodium chloride (NaCl - common table salt) to keep the copper sulfate from coating the steel with a deposit of copper that will stop the etching process. Stainless steel and aluminum both naturally form oxidized coatings on their surfaces when exposed to oxygen. The anode can be either the same as the metal being etched or stainless steel. If I feel like tinkering around, I’ll probably try it again for kicks. The red wire is wrapped around the qtip cotton. Consider this to be the beginner of all beginner’s guide on how to do salt water etching on metal. Simple way to etch metal and Knives using a 9 volt battery and table salt. Cut the Pattern. Engraving is quite tricky and unforgiving. It’s definitely viable though, if you’re wanting to do some Etsy type of craft-for-sale with a logo. $19.99. The transferred ink will resist for etching with vinegar. I was wrong. There are a number of techniques used for etching stainless steel. Mix it with water. Attach one wire connecting the positive terminal of the 9-volt battery to the open neck of the bottle. Now, determine on which part of the steel you want to etch. What is the full chemical equation when you use the following reactants to etch copper: vinegar / acetic acid (5%) $\ce{CH3COOH (aq)}$ hydrogen peroxide (3%) $\ce{H2O2 (aq)}$ salt $\ce{NaCl (s)}$; copper $\ce{Cu (s)}$; Yes there are previous questions asking the same thing (one and two).However, the answers to both give only parts of the reaction, not the full equation. I've been working in manufacturing and repair for the past 14 years. An engraving pen is cheap, waaaay faster and is my go-to for labeling metal or plastic. This holds for all metals being etched, excepting aluminium, which can only be etched using a stainless steel anode. Scribing a pattern in (relatively) soft nail … I etch copper with salt, water and a lantern battery. It is best mixed in a 1 to 1 ratio with sodium chloride (NaCl - common table salt) to keep the copper sulfate from coating the steel with a deposit of copper that will stop the etching process. The stainless steel pan is a great addition to the kitchen. The most common technique in stainless steel etching is chemical etching because it is easy, effective, and the required materials are inexpensive and are regularly available. Super light etches could rub or wear off, deep etches will last (almost) forever. Now, you need to mix nitric acid with vinegar in a ratio of 1:1. Copper sulfate is better suited to etching mild steels than stainless steel. Apply in intermittent, short spurts. You will need a direct current for this to work, itsgus used a 9V block battery, we had a DC power supply at hand. 2nd Update (also by rohieb): After buying a bunch of new (steel) belt buckles, I tried an Extended Advanced Etching Contraption: Although the belt buckle was wrapped in duct tape, the vinegar-salt solution leaked through, which resulted in slight etching on the inside on the buckle. If you use a transfer paper, you will need to press gently and for photo paper, press it harder. The etching process also produces a tiny amount of hydrogen (a harmless but flammable gas), and you should provide ventilation to … If you are someone who needs more professional like etching or wants to replicate a design by etching, then the iron method is all you need. You will see your desired text on the metal now. We wrapped a small piece of gauze and clamped it onto the negative lead. It’ll help you get that etching done quickly and more consistently. If you can somehow manage to write anything with the exacto knife on the tape, it will not look good. You’d need to make a little investment, though, in a vinyl sticker cutter. The mixture of vinegar and salt is going to do the trick. Materials: Metal Water Bottle, either stainless steel or aluminum But that will not etch the metal better than what would have been etched with the mixture of both. Cut them and strip off the plastic quite bit for the clips to connect. Request a quote, link to Different Kinds of Stainless (and how to tell what's what), Some very small container for the salt water. A patina is a controlled rust on a knife. The blue solution gradually fades as the etching progresses and turns colorless when it's finished. As a point of reference, the etch that I did took about 5 minutes of “burn”. Do not apply in a long, steady stream as this generally leads to sagging in the final finish. Tested etching mix: * 100ml vinegar * 7ml salt. Now, on the other side of the red alligator clip should be clipped to the upper side of the metal. Here it comes the critical and worrisome step. Yes, etching is the opposite of electroplating. Stove top or generic … Nitric acid – Works well on most metals. But if you’re just wanting to mess around like I did, all you need is some tape. Use undiluted vinegar for heavy staining or marks. Next, wrap the black (negative) wire around the tip of the Q-tip. For this step, I used nail polish remover and paper towel to wipe off the knife. Irons. You might need to hold tapping over the pattern for 5 sec. Make It From Metal is owned and operated by Maverick Manufacturing Solutions. My specialty is machining. Sorta. Dip a Q-tip in the salt water. Insert piece of copper fabric. Always remember to rinse everything thoroughly after a cleaning. In the vinegar, the salt dissolves into positively charged sodium ions and negatively charged chloride ions. I use cleaning vinegar, 7% acidity, 0.70€ the litter at the local supermarket) Hydrogen Peroxide. It’s time to etch logo or text or whatever you want. ... "The acid in vinegar can etch natural stone," says Forte. Use a gentle mist to start so you clear away most stains. I’d also highly recommend getting a proper power source unless your logo is absolutely tiny. You can put a logo on knives, water bottles, etch your name on the inside of a ring, on your tools, you name it. Iron the paper smoothly and circularly stroke for 5 minutes. An Ancient Process. What I'm doing is trying to decorate a backsplash behind my stove using salt water etching. Dip the Q-tip in your vinegar solution and touch it to the kettle. Prepare a solution of salt and vinegar (around 70% vinegar/ 30% salt). You no longer need to remove transfer paper, as it will be peeled away on its own. Pour 2-3 tablespoons of vinegar onto a microfiber cloth if you don’t want to spray your stainless steel. I guess not. 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