Summary for rohs-compliant yellow chromate Discussion
The focus keyphrase, RoHS-compliant yellow chromate, is not actually answered in the excerpt provided. The only visible content is a reference to the book “The Surface Treatment & Finishing of Aluminium and Its Alloys” by Wernick, Pinner & Sheasby, with an Amazon or AbeBooks affiliate link. Because no question text or technical replies are included, there is no thread discussion to summarize about Iridite, chromate chemistry, or RoHS compliance. Based on the source shown, the page appears to be pointing readers to a reference book rather than offering a direct solution. If the full thread includes answers elsewhere, those details are not present in this excerpt.
“The Surface
Treatment &
Finishing of
Aluminium and
Its Alloys”
by Wernick, Pinner
& Sheasby
on Amazon
or
or
(affil link)
Aluminum How-To
“Chromating – Anodizing – Hardcoating”
by Robert Probert
You’ll love this book. Finishing.com has sold a thousand copies without a return request 🙂
Q. Since July 1st we now need to receive only RoHS compliant stock. Most of the 19″ rack or slice panels, designed for our cable assemblies, were originally specified with a yellow chromate finish on steel. One of our suppliers is now asking if they can use Iridite. Is this RoHS compliant and how does it differ from standard yellow chromate?
Jason Page
Cable Assembly Manufacturer – Radlett, Herts, UK
2006
 | A. Jason Our customers require that we verify/certify that the products we sell are RoHS compliant.To do so, we verify with our suppliers that their products are compliant. I would recommend against telling your supplier that a particular product/coating is OK, as you then accept liability. Ask your supplier to furnish you with an acceptable product that is RoHS compliant. Let them do what you are paying them for. RoHS compliance isn’t exactly new. Willie Alexander A. Iridite* is a chemical name like Alodine*, no different from your standard yellow chromate. Bill Grayson A. Iridite is a brand name and comes in many different types. Some of these are RoHS compliant, some are not. Better ask your supplier about the exact product they are using. You can then request the information from the manufacturers as to whether the product is RoHS compliant. Brian Terry |