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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Black Oxiding for Tin Electroplate?
I have a customer who is asking about setting up a black oxide line for tin-plated steel and brass wire. I have heard of blackening of tin, but not exactly black oxiding of such. Our products would impart, at best, a darkening (maybe brown, gray or blue-ish), but I doubt that it would be BLACK. Any ideas or knowledge on this? Thanks!
Randall Fowler - Fowler Industrial Plating, LLC
Cleveland, Tennessee, USA
2006
2006
Grayish Black patina for tin:
200 gm iron(III)chloride
1 lit water
or
30 gm ammonium chloride
7,5 gm molybdenic acid
1 lit water
use hot solution,only for grease end oxide free objects!
Good luck!
- Cerovski vrh Croatia
Goran, Thank you, thank you, thank you! I am going to pass this along to our R&D staff at corporate. Again, many thanks.
Randall Fowler - Fowler Industrial Plating, LLC
Cleveland, Tennessee, USA
2006
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