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Silver coating is gold in color instead of silver

March 23, 2009

Dear sir,
Now we have problem. In our plant we coat plastic to silver; but when we finish the product is gold color, we think maybe relative to humidity and temperature . . . if someone knows, please answer us . . .
In my plant the temperature is about 30-38 °C , humidity about 39-58.

Thank you so much

Boworn Asam
engineer - Thailand

Sorry, Boworn, but I don't understand even what process you are speaking of? Silver electroplating after electroless nickel, two-part silvering, silver colored paint, vacuum metallizing with aluminum? Please tell us what you are doing.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
March 24, 2009

What is under the silver that is diffusing through? Copper?
Iron? Brass?

Robert H Probert
Robert H Probert Technical Services

Garner, North Carolina

March 25, 2009

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