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topic 60877

Does Wash Primer have Hexavalent Chrome?

October 19, 2018

Q. WHEN DID SHERWIN WILLIAMS REMOVE Cr 6+ FROM WASH PRIMER PER MIL-C-8514?

Randy Matuskey
- Glendale, California


October 2018

A. Hi Randy. According to https://www.paintdocs.com/docs/webPDF.jsp?SITEID=SWOEM&doctype=EDS&prodno=E90G16, it currently contains 0.8% by weight of Chromium, and 9.0 by weight chromium compounds. I am not familiar enough with their Environmental Data Sheets to be able to say whether this indicates that it is or is not free of hexavalent chromium.

The sheets do state --in capital letters -- "AS CURRENTLY FORMULATED", which is certainly an indication that they feel entitled to change the formulation of their product at will. Consequently, if the answer is important, the only safe thing to do is inquire directly of Sherwin-Williams with batch numbers, etc.

Your situation is probably interesting. Good luck.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"



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