OK. I had to try it, but it still needs refining and testing. I know you guys will pick up where I left off!
I read about people using Ceramark and the like (and how expensive it is) to etch steel. I also saw the people joking about mustard and the youtube video of him doing it. I had to try it… and it worked!
I dabbed mustard (plain ole yellow) and also soaked a cheap paper towel in cleaning strength white vinegar since I assumed that is what is creating the reaction in mustard to start with and it seems I was correct.
I apologize for the horrible pictures, but I hadn’t planned on making a post about it but wanted to share. The first REALLY dark letters were my first pass that was too strong. I did 2 passes since this did NOTHING on some metal sheeting I had I will assume is aluminum… and there is no need to do 2 on stainless steel as it is too much.
EDIT: Because I can’t leave anything alone even when I should be doing something else… I found the best settings for me. The result is in the last picture I added after my initial post.
FULL POWER: 250 SPEED: 340LPI (I bumped up the speed AND LPI) I think the LPI made a big difference on the brushed stainless. It may not be as necessary on chrome like metals.
Dab on mustard with finger and lick it off. Dipped paper towel in white cleaning strength vinegar and slap it on. Yes, I used my calipers because I was being lazy. lol
After being totally cleaned none of the black ever rubbed off. Its the metal. It is etching it away as well… the overly burned ones have quite the indent. lol The other lighter ones have very little. The vinegar towel did come out slightly darker, but I don’t think the quality itself is any different.
This was my “I can’t leave it alone until I figure it out” trial on just the vinegar. The MD on the bottom jaw in the center is with the settings that I gave using a super wet (not dripping obviously) towel bit. and the one to the left of it was using a really wrung out piece. Obviously, the more acid the better.
Oh the possibilities and the best part is that it is FREE! Can’t wait to see what you guys figure out!