Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Stripper for acid copper plate off of zinc die castings
Can you suggest a stripper that will do the job without attacking the zinc diecast base?
Les GonsalvesPlating chemical supplier - Chicago, Illinois
April 23, 2010
May 4, 2010
Hi
Try concentrated Nitric Acid, take care of fumes!
regards
- Chennai, India
Pure - no water- nitric will strip off of steel, but I think that it will rapidly attack zinc. Try it on a part before you get carried away with it. Commercial nitric has too much water in it. Go for the fed fuming nitric.
James Watts- Navarre, Florida
May 5, 2010
May 7, 2010
Macdermid offered a process based on polysulfide many years back. If they are not available try "liver of sulfur" followed by a cyanide dip to remove the smut.
If you must resort to this be very careful.
Geoffrey Whitelaw
- Port Melbourne, Australia
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