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How to Coat Plastic Spheres with Zinc?





December 17, 2008

I am looking to coat a glass or plastic sphere that is 1mm in diameter with zinc. The sphere can be conductive if required. It can also use a undercoating of a metal if required, however must be thin (Inert to KOH) . The film thickness of the zinc is 100 microns. Is this possible?

Dennis Smith
Product Designer - San Jose, California, USA



January 15, 2009

We have plated 1 mm spheres made of White Metal - some concoction of aluminum-zinc together, you need special equipment, but yes it is possible.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind
supporting advertiser
Bengaluru, Karnataka, India
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January 16, 2009

Zinc is a poor choice as it will dissolve in either acidic OR alkaline solutions. It is quite good for the mid pH ranges or short durations.

James Watts
- Navarre, Florida


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