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Iridite 17P and RoHS compliant alternates?
I am looking for the current process for chromate conversion coat over copper: either Iridite 17P Mix B or Iridite 8P Mix C-3. Is this still offered or is there an updated acceptable similar?
Mike Jones- Boston, Massachusetts
August 5, 2021
A. Hi Mike. I don't see any reason to believe that they are still available, but check with your Macdermid/Enthone rep.
As for 'acceptable similar', if it's your own product, it's up to you to decide what is sufficiently similar; but if someone else specified it, you probably realize that you have to trace back to who that is, and have them sign off on a substitute -- no such thing as accepted alternate.
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
August 2021
⇩ Closely related postings, oldest first ⇩
2005
RFQ: I need Iridite 7p and 17p for copper alloys passivation on waveguides. Some old mechanical drawings request these surface treatments on waveguide assemblies.
I don't know if they are powders or other because we never see them.
If they are powders we need about 20 Kg. (More in future?)
Please contact me by mail, thank You.
Microwave components, waveguides - Firenze, Italy
^- Sorry, this RFQ from 2005 is outdated
View Current RFQs
Q. Is the chromate conversion coat used over silver plating, ASTM B700, RoHS compliant?
Mark Schwanproduct designer - Rochester, New York
February 11, 2009
A. Hi Mark. In the old days it surely wasn't. Sometime in the future it almost surely will be.
For the present I think you'll need to find out from your plating shop exactly what chromate conversion coating they are applying because both hexavalent and RoHS-compatible are probably available to them.
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Where or how can I get an MSDS or SDS for CHROMATE COMPOUND equivalent to IRIDITE 17P immersion solution?
Wilhelm GrevelJMC - McAlester, Oklahoma, USA
February 1, 2018
February 2018
A. Hi Wilhelm. Iridite is a MacDermid-Enthone trade name, so you will have to start at macdermidenthone.com. Unfortunately, that info is not available on the open www anymore, so I can't check for you. They, like many others, have moved to a system where you'll need to register before you can see stuff. Finishing.com was the first website in the world in the finishing industry, and it certainly seems we're on track to become the last :-)
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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