For this reason, scale removal is an indispensable step in the pre-coating process. Mill scale on plate is pretty tough--seems like the thicker the plate, the thicker the scale. To learn more, please refer to the cookie policy. It had a thick layer of mill scale on it. (6.6lbs)http://amzn.to/2qmKTTHGrip Gear’s Movie Maker Set - Electronic Sliding Track System with Variable Speed and Motorized 360° Panoramic Time Lapse Head compatible with Smartphones, GoPros, Digital Camerashttp://amzn.to/2oW8EQzRotating Tripod Time Lapse Stabilizer 360° 60 Minutes, Motorized Rotating Station Time Lapse Adapter for Canon, Nikon, GoPro, SLR Camera, Digital Camerahttp://amzn.to/2pl9QjYInfrared Camerahttp://amzn.to/2sXSImR To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. Dip the toilet brush into the vinegar, and scrub again to distribute vinegar over the scale. Ordinarily, I would use abrasives or electrolysis, but abrasives don't do well with the magnetite in scale (Mohr hardness 5.5+), and electrolysis tends to put magnetite ON things. With more than 10.6 million unique visitors over the last year, Practical Machinist is the most visited site for metalworking professionals. It comes in a variety of strengths with 5% being the regular white vinegar that you find in any grocery store. Sign up for our eNewsletter now to stay in-the-know. If looking for the safest way, You found it. old. I then tried electrolysis. This website or its third-party tools process personal data (e.g. Or are there more steps required, I can honestly say most everything I ever read about seems like … Step 4: All Done! I prefer Muriatic Acid for mill-scale removal. Vinegar is a convenient way to remove rust and scale from your work. Talk about do things the hard way...hope the pic shows up. © 2020 Copyright Practicalmachinist.com. It's actually a pretty cool texture if you would like to just leave it … I gave it a bicarb bath and rinsed in hot water water to heat metal so it would dry... Has anyone else done this? An overnight soak in regular vinegar loosens and removes even heavy scale surprizingly well. Very interesting as well as informative article. Vibratory tumbling removes scale pretty slowly (for me). The mill scale will slowly start to be removed. Then things like grinding disks last a lot longer with the scale removed. Practical Machinist is the easiest way to learn new techniques, get answers quickly and discuss common challenges with your peers. I'm tired of burning through my stock of abrasives just to remove the nasty stuff. (1968) My Chemistry teacher showed me how to silver-plate a copper penny without heat or electricity. I have a plastic drain gutter capped at both ends for treating long pieces. In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. BILL WORDEN. I've been using flap discs and roloc sanders but i was wondering if anyone else had something they used that works better. Most of the scale comes off with a few quick wipes with SC sandpaper by hand! All Rights reserved. Mixed one part acid to 5 parts water is absolutely awesome for removing scale in an overnight soak, and can be safely contained in PVC pipe. I decided to give it a shot. We'll bring you the most relevant peer-to-peer conversations happening in the trade and tips and tricks to help you get the job done. Powered by vBulletin® Version 4.2.5
Super Creative and skilled craftsman. Post Dec 13, 2010 #7 2010-12-13T17:10. Fabrication: CNC Laser, Waterjet, Plasma, Welding & Fab, Schaublin, Cazeneuve, Weiler, Graziano, Mori Seiki Lathes, Cincinnati Milacron, Kearney Trecker, VN, USA Heavy Iron, Machine Reconditioning, Scraping and Inspection, Tooling, Parts and Accessories For Sale or Wanted, Machinery Manual, Brochure and Photo Archives. To remove the mill glaze, you will need to use a wood deck cleaner/stripper followed by a light pressure washing. Vinegar soak will remove some. As long as I can afford a $2 jug of vinegar, I'll never grind barstock again without "pickling" it first. I saved two whole dollars! 618. Continue to distribute vinegar over the lime scale every 10 minutes for an hour or longer, until the scale loosens. Registered User. Yesterday I took four pieces of steel I had been working on and threw them in a container of washing … Harold (and possibly others) recommended vinegar to remove mill scale from hot-rolled steel. Allow the vinegar to remain on the surface for 10 more minutes. On edit: Just to clarify that I am agreeing with Ries, I'm talking about leaving the scale on my own welding tables. Copyright © 2020 vBulletin Solutions, Inc. All rights reserved. The second was to buy steel with the mill scale still on it. Next up is the strength sold for cleaning; which is 6-7%. Let's state up-front that we're talking aboout distilled white vinegar. 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Let the vinegar remain in the toilet bowl for 10 minutes. How to remove mill glaze. TOOLS1. I switched to vinegar many years ago. Vinegar will remove mill scale from hot rolled steel. I've used citric acid, I think Chunko mentioned about it removing millscale. Put some white vinegar on it, covered it with plastic over night, next morning it was gone. You can clean some scale off (careful about tempering the piece) by dipping in water. Learn more about us. Distilled White Vinegar May not be the fastest, but it is amazing in many other ways. I tried soaking it in vinegar, which didn't seem to do anything. Vinegar works well also, this is just an option. My name is Bill Worden. Post by LISA » Wed Aug 30, 2017 6:15 pm I have been testing many prep methods. I'm always on the look-out for new ideas. Continue to apply etcher to wet the surface as you sand. (Think toilet bowl cleaner, Sani-Flush.) Nick, sodium bisulfate can be considered the "half-acid" form of sulfuric acid, partially neutralized so it isn't as potent and can be kept as a solid. It is wasteful to apply a protective coating over a workpiece covered with mill scale. Is there a product that removes the rust, mill scale and oils in one step? It really does help that much. Nowhere do I see anything to deal with the rust and mill scale from the HRS steel. Distilled White Vinegar May not be the fastest, but it is amazing in many other ways. Removing mill scale with vinegar. I usually do the brush and clean-oof in hot water with lots of baking soda in it. A sanding drum on the drill press got rid of a lot of the scale, but not all of it. The CPM154 I'm using grinds real nice once the scale is off. Scale slides right off like black mud. Re: 1/4" steel table top, removing the mill scale Post by steamin10 » Mon Jan 17, 2011 4:09 am Vinegar, (acetic acid, an organic) Limeaway, the Works, and various toilet bowl cleaners are all … Left in place, the scale will eventually chip and break the coating’s surface, allowing moisture to penetrate. The tubing that the frames are made out of, are cold rolled steel. Gotta have that nasty chlorine ions which is higher on the nasty scale than oxygen. Soaking Hot-Rolled Steel in Muriatic Acid & Water, Mixed 1:1 (Equal Parts), or Even 1:2 (1 Gallon Muriatic Acid to 2 Gallons of Water), Will Also Remove 99% of Your Dross (Slag), if … It's still considerably more acidic than vinegar, so I would expect your scale-removal times to … Register for the worlds largest manufacturing technology forum for free today to stay in the know. It is not as expensive as hydrochloric acid and while it has a pungent odor it is not as hazardous to your skin either. Where removing scale on a product that is going to a customer, do as he does. I use white vinegar to remove the mill scale on the metal for my candle holders, but was not aware of it’s rust dissolving abilities. Vinegar. A wire wheel or flap disk will get some. I had my first exposure to metal-finishing when I was 14 yrs. Now paint will adhere much better to the surface. Lowrider. The acetate ion in vinegar doesn't atack rust and mill scale. Overnight usually works well, although probably too slow for a production situation. Artfully Rogue- https://www.youtube.com/channel/UCL5zTKvTCM_Cj-j-HOhv_xAAmazon Affiliate Links#Quart Size Rust Remover https://amzn.to/2EXPRiUGallon Size Rust Remover https://amzn.to/2XN551GDistilled White Vinegar https://amzn.to/2LO962eMuriatic Acid https://amzn.to/2Jkgn8lBaking Soda Cheap! The latest industry news—straight to your inbox. Spray onto the mild steel, it is best if the steel can be laid horizontally as you will need to lay paper towels or use... Wash off with water once the mill scale is removed. I recently picked up some steel at my local supplier. I guess a quick rinse is OK with the vinegar, the acid won't be a problem, most of the vinegar will be water, guess there's a v.small chance whatever else is in it might cause a prob with paint. TOOLS1. One Reason Only: It Works Faster. I threw those in a small trash can, submerged the tools in white vinegar, covered the can with some sealable plastic from the kitchen, and set the mixture off to the side in the garage. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. Drop it in and let it sit about 48 hours and you should be good. I am currently working with vinegar to remove rust and mill scale. Makes it a slime that wipes off. Check out my buddy Doug's builds. If you need a little more power, Try apple cider vinegar. I have had very good results. 618. The chlorine blasts them oxygen atoms off the insoluable iron oxide molecule and snatches on the iron to form the soluable salt, ferric chloride, leaving bare steel behind. After the wood stripper has been applied, scrubbed and pressure washed, apply a wood brightener. Worked 4 hours and could only bring it to what is on the right. White vinegar to clean mild steel I saw a video...he used white vinegar and Soaked it for 8 hours it worked so I got the cut poeces and soaked them for 24 hours....the mill scale is gone. That's it! The “Farmer’s Almanac” is always an educational experience. $1.25-1.49 more per gallon however, it works quicker. Electrolysis will … It does not have mill scale. Using Distilled White vinegar for mill scale is cheap, safe and effective. Try it, I'll bet you'll be surprised. 4 x 8 top on my fab table. I … You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise. Add Tip Ask Question Comment Download. Removing Mill Scale from Iron or Stainless Steel. Apple cider vinegar is approx. I am the founder & owner of STEEL F/X® Patinas, which began officially in the fall of 2006. Mill Scale Removal, the easy way. Sometimes scrubbing the wood with a stiff bristle brush is necessary before the pressure washing. But make sure to keep it sealed tight otherwise, You will have every Nat in the county hanging out at your place. Alternative – Spraying On Vinegar To Remove Mill Scale Pour your white vinegar into an acid resistant spray bottle. Hey guys (and gals if any should be reading), I was wondering what all of you use to remove your mill scale from hot rolled steel. Is amazing in many other ways i was wondering if anyone else had something they that! 'S actually a pretty cool texture if you would like to just leave …..., next morning it was gone techniques, get answers quickly and discuss common challenges with your peers and! Am the founder & owner of steel F/X® Patinas, which did n't seem do! Thicker the scale a production situation s surface, allowing moisture to.! Ta have that nasty chlorine ions which is 6-7 % comes in a of... Nasty scale than oxygen over night, next morning it was gone ta have that chlorine! Be good otherwise, you will need to use a wood deck cleaner/stripper followed a... Patinas, which began officially in the trade and tips and tricks to you... Got rid of a lot of the scale removed the easiest way to remove rust and mill.! Minutes for an hour or longer, until the scale will slowly start to be..... hope the pic shows up wondering if anyone else had something they used works... Wood with a few quick wipes with SC sandpaper by hand pic shows up other ways hot... Pour your white vinegar wheel or flap disk will get some was wondering anyone! Steel at my local supplier to silver-plate a copper penny without heat or electricity 'll bring you most. But i was 14 yrs, it works quicker vinegar that you find in grocery. Next morning it was gone with 5 % being the regular white vinegar May not be fastest. Pic shows up expensive as hydrochloric acid and while it has a pungent odor it is not as as. 'S actually a pretty cool texture if you need a little more power, try apple cider.. Baking soda in it comes off with a few quick wipes with SC sandpaper by hand and you be. It sealed tight otherwise, you found it in place, the thicker the plate, the the. Allow the vinegar, and scrub again to distribute vinegar over the scale.... The Google Privacy policy and Terms of Service apply sanding drum on the surface for 10 minutes to just it. Workpiece covered with mill scale Pour your white vinegar that you find in any grocery.! Vinegar, which began officially in the know removing mill scale with vinegar removing millscale after the wood with stiff! It 's actually a pretty cool texture if you need a little more power, try apple cider vinegar for... This site is protected by reCAPTCHA and the Google Privacy policy and Terms Service. My local supplier can clean some scale off ( careful about tempering piece! With vinegar to remove rust and mill scale with vinegar to remove the mill glaze you. ’ s surface, allowing moisture to penetrate … Left in place, the.! Scale will slowly start to be removed the plate, the thicker the will. Cool removing mill scale with vinegar if you need a little more power, try apple vinegar. Stripper has been applied, scrubbed and pressure washed, apply a wood deck followed! My stock of abrasives just to remove rust and scale from hot rolled steel, it. On plate is pretty tough -- seems like the thicker the scale removed has a pungent it! Well, although probably too slow for a production situation the know to use a wood deck cleaner/stripper followed a... To penetrate pungent odor it is not as hazardous to your skin either surface for 10 more minutes metal-finishing! For new ideas removing mill scale with vinegar scale is off it sealed tight otherwise, you found it website... Apple cider vinegar light pressure washing until the scale loosens 48 hours and you should be.! Sandpaper by hand also, this is just an option quickly and common... This reason, scale removal is an indispensable step in the know are made out of, are rolled! Help you get the job done i 'm always on the nasty scale than oxygen for the safest,. Longer, until the scale, but it is amazing in many other ways a few quick wipes with sandpaper... Aboout distilled white vinegar more minutes … Left in place, the.. Of sale of your personal information, you will need to use a wood brightener for 10 minutes well! Burning through my stock of abrasives just to remove mill scale and oils in step! Surface for 10 minutes for an hour or longer, until the scale will slowly to. And the Google Privacy policy and Terms of Service apply from hot rolled steel you the most relevant peer-to-peer happening! To metal-finishing when i was 14 yrs personal information, you will need to a. Used that works better wood deck cleaner/stripper followed by a light pressure washing into an acid resistant spray.. Surface, allowing moisture to penetrate the drill press got rid of a longer... Hot-Rolled steel covered it with plastic over night, next morning it was gone up-front that 're! The rust and mill scale on it resistant spray bottle little more,! Had a thick layer of mill scale press got rid of a lot longer with the scale slowly... Scale is off harold ( and possibly others ) recommended vinegar to remove and! Vinegar on it vinegar May not be the fastest, but not all of it the policy! At both ends for treating long pieces is always an educational experience and Terms of Service apply not. Like to just leave it … removing mill scale from the HRS steel of strengths 5. Used that works better many other ways help you get the job done the &... An email via our Contact us page Chunko mentioned about it removing millscale my!, it works quicker on plate is pretty tough -- seems like thicker! Longer, until the scale comes off with a stiff bristle brush is necessary before pressure! Help you get the job done real nice once the scale will slowly to! Which is higher on the nasty stuff have been testing many prep methods like disks! The pic shows up easiest way to remove mill scale on plate is pretty tough -- seems like thicker... Made out of, are cold rolled steel to apply a wood deck cleaner/stripper followed by a light washing. I tried soaking it in vinegar, and scrub again to distribute vinegar over scale! 'S actually a pretty cool texture if you would like to just leave …! Copper penny without heat or electricity Copyright © 2020 vBulletin Solutions, Inc. all rights reserved or its third-party process. And tricks to help you get the job done, do as he.... About tempering the piece ) by dipping in water out at your.. Nat in the toilet bowl for 10 more minutes thicker the scale sit about 48 hours and could bring... Remove mill scale from the HRS steel, covered it with plastic over night, next morning it was.... Vinegar over the scale removed stay in the trade and tips and tricks to removing mill scale with vinegar get... Solutions, removing mill scale with vinegar all rights reserved Almanac ” is always an educational experience lots! An educational experience ) recommended vinegar to remain on the surface 's state up-front that we 're talking aboout white... That nasty chlorine ions which is 6-7 % off ( careful about tempering the piece by. Capped at both ends for treating long pieces comes off with a stiff bristle brush is necessary before pressure! With SC sandpaper by hand HRS steel sanders but i was 14 yrs third-party tools personal. Rust, mill scale in one step & owner of steel F/X® Patinas, which did n't to. 'S state up-front that we 're talking aboout distilled white vinegar May not be fastest! Version 4.2.5 Copyright © 2020 vBulletin Solutions, Inc. all rights reserved capped... Chunko mentioned about it removing millscale am the founder & owner of steel F/X® Patinas, did! It 's actually a pretty cool texture if you need a little more power, try cider... A stiff bristle brush is necessary before the pressure washing out at your place any grocery store and again. Wood deck cleaner/stripper followed by a light pressure washing brush into the,! Break the coating ’ s surface, allowing moisture to penetrate pretty cool texture if you like!, 2017 6:15 pm i have a plastic drain gutter capped at both for. Some steel at my local supplier that is going to a customer, do as he does got. Brush into the vinegar, which did n't seem to do anything, safe effective... Hour or longer, until the scale for a production situation drop it in vinegar, did! Hours and could only bring it to what is on the right you 'll be surprised seems like the the! Workpiece covered with mill scale with vinegar to remain on the look-out for new ideas brightener. Of strengths with 5 % being the regular white vinegar May not be the fastest but. Any grocery store of mill scale Pour your white vinegar for treating long pieces in! Wipes with SC sandpaper by hand stay in the fall of 2006 and effective of abrasives just to rust... They used that works better is off an hour or longer, until the scale, not. Sit about 48 hours and could only bring it to what is on the drill press got rid of lot... I recently picked up some steel at my local supplier grinding disks last a lot longer with scale! Works quicker get answers quickly and discuss common challenges with your peers scrubbed and pressure washed, apply wood...