Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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What is "Gold Iridite"?

2007

What is the surface treatment of "Gold Iridite"?
It's used on Steel.

Thank you for your help!

Nikki Lin
plating shop employee - Taiwan

It's "Iridite" (single 'r'), Nikki, a Macdermid trade name for proprietary chromate conversion coatings on zinc plating. You need to zinc electroplate the steel before you can Iridite it.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007

To add to what Ted said, Iridite is a trade name for a line of chromate conversion coatings. Yellow Iridite is sometimes used as a general name for yellow conversion coatings on a variety of substrates (zinc, cadmium, aluminum, etc). Steel is not one of these.

Gene Packman
- Great Neck, New York
2007

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