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RoHS and zinc plated hardware

2006

Are you saying (ref. letter 36234) that Zinc Plated washers and retaining rings are compliant? I thought my vendor said they were not.

Susan Hotkowski
- Old Saybrook, Connecticut, USA

First of two simultaneous responses -- 2006

It's not the Zinc but the chromate that is at issue.
It is the chromate. Hexavalent chromates on zinc or aluminum would not be considered RoHS compliant.

Bill Grayson
metal finishing - San Jose, California, USA

Second of two simultaneous responses -- 2006

Zinc plated anything which has a trivalent conversion coating or non chrome coating is generally compliant. Ask your vendor to certify that parts are RoHS compliant.

Gene Packman
process supplier - Great Neck, New York

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