Curated with aloha by
Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
-----
Safer Alternative to HF Acid for Aluminum Brightening?
We're working with a client that is interested in replacing hydrofluoric acid with a safer alternative to remove brazing flux and oxide from aluminum parts. The flux can be removed with friendlier chemicals, but because of the need to provide a bright and shiny finished part the client has been using HF acid in low concentrations.
I've read a lot of information on other acid solutions to use for this purpose such as sulfuric and nitric (and combos, thereof), but ideally we would like present a much safer alternative to them than harsh acids (if it exists). I'm interested in seeing if anyone has any experience with using ultra-sonic baths with acetic acid ⇦ this on eBay or Amazon [affil links] or maybe phosphoric acid. Comments would be greatly appreciated!
Jim KirlinRMT, Inc. - Greenville, SC USA
2001
Q, A, or Comment on THIS thread -or- Start a NEW Thread