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How to preserve a raw aluminum finish
I'm working on some aluminum costume jewelry that I soak in strong sodium hydroxide solution for a few minutes outside. The result is a sandy, non-reflective white surface that I really like. I want to preserve this surface, and prevent it from being scratched or polished from everyday wear. Any ideas? Regards, Joe.
Joe Davisson
St. Louis, Missouri
1999
1999
Just try anodize the aluminum. connect the aluminum to the anode and the cathode can be lead, aluminum or graphite.
V ~ 12 VDC, Amp
5 A/dm^2,
Temp ~ 25C,
electrolyte ~ 10% vol. H2SO4,
electrode distance ~ 10 cm,
time ~ 5 to 60 min. Try to vary the above variables.
wailok yee
- Hong Kong
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