Mikey P
Administrator
- Joined
- Oct 6, 2006
- Messages
- 116,675
Yes. Straight up for a test spot. Muriatic acid. But, if the 50/50 had no effect, probably a waste of time. May need a top of the line stripper with generous dwell.Are you asking if I used undiluted acid cleaner?
No my next Prochem's restoration acid 50/50 and not even the slightest fizz or effect