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topic 1069

Brake Caliper and Piston Plating


Does anyone have knowledge on the type of plating generally used on automotive caliper pistons. Some have told me its a chrome finish but others have said its Cad.

Thank you in advance!



I thought it was Electroless Nickel.

David M. Weaver
- Toccoa, Georgia

Ed. note: With great sadness for his family we must advise that David lost his life to a car accident on Aug. 15, 2003.


Depends on the make and era of your car. I know that GM power brake "boosters" were "gold cadmium dichromate". This is also used on the brake backing plates of some GM cars. I am looking for a supplier to do this as well. Many car brackets are also done in the g-c-d process. Car judges will accept black or natural finish metal for the calipers on 60's GM cars

mike malone

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