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topic 5293

Information on Alodine for Aluminum Castings


(2000)

I am looking for some information regarding Alodine 1000 and 1500. First the name and contact information for the manufacturer in the US.

Second looking for information regarding the best method of measuring the thickness of Alodine on Aluminum die castings.

Lastly, any information regarding non-chromate chemical conversion processes for aluminum die casting (A380, 413.2, ADC 12, GD-AlSi9Cu3, GD-AlSil2(Cu)).

Thank you,

Kevin Yuskis
- Richmond, VA USA


(2000)

Alodine is a trademark of Henkel Surface Technologies.

I don't have a good answer for question #2, sorry.

Regarding substitutes, see www.jgpp.com/jtr-hugh.htm for a list of the most promising, and to learn the sad news that, when independently tested, no chromate substitute really holds up yet despite all the hype and the desperate search.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey

Ed. note 11/25/06: The jgpp.com domain is still functional although the referenced page link is broken. Progress has been made on this subject and there is now an approved hex-free substitute called TCP licensed by the navy to CST-Surtec, Henkel, Luster-On, and Metalast.



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