The most basic and informative guide to fantastic results thanks for a easy answer to my work bench top woes so many people just have small stuff to dip in a container not a sheet full size thanks for your efforts to make a short video 😀
Good to see how much you diluted it. Also good to see how long and how it looked while it was going through the process.. to give me an idea how much to do.. (baking soda helps stop the process and the rust.. after you acid wash)
holy crap, i've wasted sanding and grinding disks just trying to clean up for a weld! Ceramic is a pretty good way to describe it, nothing bites into it. Thanks for the video!
Thanks for posting this video I ready about using hydrochloric acid for removing mil scale but wasn't sure how it would work on sheet steel but after watching this I went and bought some sika cement remover and give it a go however I used it undiluted as it was only 10/20% hydrochloric acid and it worked a treat. Good luck with your project yacht and thanks again. Chris
I'm so jealous! I tried straight Muriatic acid and scrubbed it for an hour, but it did nothing to my mill scale at all. Product I used was 31% from local pool supply store. Maddening to see others have success with this method, yet it does nothing on a 4ft diameter steel plate I'm working on. Wish I knew why it won't work.
Put that muriatic acid in a spray bottle and my 18 x 20× 3/8" steel plate was spotless and shiny!!! Took 15 minutes!!! Way faster than soaking in vinegar ❤
Thank you! ... when I faced with hard-removable mill scale on big flat surface - I first tried grinding it... but the method that worked well against paint or rust is almost not effective against mill scale. Then by intuition I tried to pour vinegar on surface and used wet applicable scotch brite paper. It was better, but still too slow... will try this method.
A bit late to the game, but... If you rinse off all the Muriatic, then wash with a dilute phosphoric acid solution, then rinse again, then the plate won't flash rust as bad (or as fast) as with just Muriatic.
Excuse me sir, what chemicals you use? Muriatic acid or hydrochloric acid? And how much water to dilute? Thanks for your great video very useful information
The most basic and informative guide to fantastic results thanks for a easy answer to my work bench top woes so many people just have small stuff to dip in a container not a sheet full size thanks for your efforts to make a short video 😀
Thanks for posting this. I just did a 1200 x 2400 sheet of steel (both sides) in 20 mins. you're a legend.......... Thanks mate!!!
Good to see how much you diluted it. Also good to see how long and how it looked while it was going through the process.. to give me an idea how much to do.. (baking soda helps stop the process and the rust.. after you acid wash)
holy crap, i've wasted sanding and grinding disks just trying to clean up for a weld! Ceramic is a pretty good way to describe it, nothing bites into it. Thanks for the video!
You are welcome! :-)
Yesterday I spent over an hour with a wire brush in my grinder to clean about 80 square inches. Thanks so much for posting this video!
Glad it was of use John :-).
Thanks for posting this video I ready about using hydrochloric acid for removing mil scale but wasn't sure how it would work on sheet steel but after watching this I went and bought some sika cement remover and give it a go however I used it undiluted as it was only 10/20% hydrochloric acid and it worked a treat. Good luck with your project yacht and thanks again. Chris
Your welcome Chris. I use swimming pool acid and dilute it, same outcome, it works very well!
I'm so jealous! I tried straight Muriatic acid and scrubbed it for an hour, but it did nothing to my mill scale at all. Product I used was 31% from local pool supply store. Maddening to see others have success with this method, yet it does nothing on a 4ft diameter steel plate I'm working on. Wish I knew why it won't work.
Thanks for the idea and taking the time to post this video!!
Put that muriatic acid in a spray bottle and my 18 x 20× 3/8" steel plate was spotless and shiny!!! Took 15 minutes!!! Way faster than soaking in vinegar ❤
Thank you!
... when I faced with hard-removable mill scale on big flat surface - I first tried grinding it... but the method that worked well against paint or rust is almost not effective against mill scale. Then by intuition I tried to pour vinegar on surface and used wet applicable scotch brite paper. It was better, but still too slow... will try this method.
Use baking soda to neutralize the residual acid and you'll get less rust.
Thanks Michael, yes I too use baking soda (Bicarbonate) and it does reduce the amounts of flash rusting. Good call!
A bit late to the game, but... If you rinse off all the Muriatic, then wash with a dilute phosphoric acid solution, then rinse again, then the plate won't flash rust as bad (or as fast) as with just Muriatic.
How would you apply the baking soda? Mix with water or spread over work piece?
Clever stuff... ☺
Excuse me sir, what chemicals you use? Muriatic acid or hydrochloric acid? And how much water to dilute? Thanks for your great video very useful information
Can this method be used to replace sandblasting for prepareing the surface for painting?
Thanks mate
I hate removing mill scale before welding with my everlast flux core. Necessary evil though for the best welds.