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How to avoid green corrosion of copper material after silver plating




I would like to ask about the issue refer to by my headline.. please give me further info on this.

Laily Roslan
silver plating of copper material - Malaysia
March 3, 2009


March 4, 2009

Hi, Laily. The silver plating is apparently not thick enough or is too porous.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


First of two simultaneous responses --

Consider to use pre-silver plating.

Dominik Michalek
- Mexico City, Mexico
March 5, 2009


Second of two simultaneous responses -- March 5, 2009

Copper and silver migrate into each other with a vengeance at room temperature and with more vengeance with heat!
You must use a difusion barrier between the copper and the silver. Use nickel or palladium.

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
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March 6, 2009

ARE YOU DOING A NICKEL COATING BEFORE THE SILVER.?
2-3 MICRONS OF NICKEL PREVENT FROM COPPER DIFFUSION BETWEEN THE LAYERS

Ricardo Burstein
Bnei Berak, Israel


I THINK THICKNESS OF SILVER IS NOT PROPER.
PL. CHECK THE THICKNESS OF SILVER AND LET US KNOW IT.
REGARDS,

ajay raina
Ajay Raina
Ludhiana, Punjab, India
March 11, 2009


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