January 7, 20206 yr I'm attempting to etch a pattern on the 440c. Normally with ferric chloride I use krylon spray paint and OPI nail polish as a resistant. But neither ferric chloride nor muratic acid would etch the steel. So I tried 10:1 diluted sulfuric acid and it worked like charm. The first time I tried it got underneath the spray paint. The second time I tried using adhesive lamination film but I got the same results. I'm cleaning the blade with alcohol and then washing it with simple green before I put anything on it and the second attempt I re-sanded the surface down to 1000 grit. Anyone got any advice on what to use as a resistant?
January 7, 20206 yr Have you tried liquid paper/ White out or Masking fluid from the the craft store paint aisle? I would try the white out first. Pnut
January 7, 20206 yr Author 2 minutes ago, ThomasPowers said: Have you tried asphaltum varnish? ThomasPowers. I'll be honest ive never even heard of it. Is it something you can get at a hardware store like lowes or ace? 2 minutes ago, pnut said: Have you tried liquid paper/ White out No I havent tried that but I do have some one hand. I'll give it a shot!
January 8, 20206 yr It's a *very* traditional acid resist; an old US government spec from 1922 said it had to resist sulfuric acid, 33%, for 6 hours... As I recall we bought a can from an artist supply or perhaps rio grand jeweler's supply. It was 35+ years ago when I was working with the sword maker...
January 8, 20206 yr Author Well I just tried using the whiteout and the sulfuric acid started reacting with it immediately so thats a no-go. Guess I'll have to wait and get some asphaltum varnish in.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.