(Cycles thru suppliers)


Letter 28042

Need Dacromet without chrome-6  

++++

We currently use Dacromet coating on socket screws and large bolts. Our customer has asked that we change from Dacromet to a non hexavalent (?) finish. We need to retain all the other qualities of Dacromet, eg, Saltspray resistance, suitability for threaded components etc.

Please advise a suitable treatment.

John McCarthy
distributor - Bristol, United Kingdom


Mar14 ++++

The manufacturer of Dacromet, Metal Coatings International, offers a chrome-free system called Geomet. I cannot say whether or not all of the qualities of Dacromet are fully maintained, but that was the intention.


Ted Mooney, P.E. 
finishing.com
Brick, New Jersey


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