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

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Trivalent chrome passivation operating parameters

April 6, 2009

What is TCP?
What are all the process involved in the Trivalent chrome passivation?
How to control the PH & Temperature?
What are all the filtration techniques involved in the trivalent chrome passivation?

Ravi Raj
student - Chennai, Tamilnadu, INDIA

Hi, Ravi. TCP is an acronym for trivalent chrome process, a Mil-C-5541 approved process for trivalent chromate conversion coating of aluminum. It was developed by and is approved by NAVAIR, and there are four suppliers who have been licensed to produce it.

It is supplied in different forms by the licensees, so you need to consult their technical data sheet for operating instructions like controlling the pH. I don't understand what you are looking for when you ask for "all the filtration techniques". Please describe your own situation before asking any followup questions. Thanks!

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
April 13, 2009

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