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Rubber bonding over plating

I have a customer who has a part (made out of 1010 non-heat treated steel) that gets alkaline zinc plated (0.0004 min.) with an olive drab chromate. There is a secondary operation that bonds a rubber material onto the surface of the part after the olive drab chromating process. They are having problems with the rubber not bonding properly.My question is this: Does anyone have knowledge of the perfect type of plating or coating that has excellent bonding properties for rubber?

Michael Adams
- Rockford Il.
2002

Zinc phosphate rather than chromate over the zinc plate would be a lot better. You might not have to plate it if you do a really good job of phosphating.(possibility)

James Watts
- Navarre, Florida
2002

Tire manufacturers. They bond millions of tons of rubber to steel tire cords. They use brass.

Guillermo Marrufo
Monterrey, NL, Mexico
2002

August 12, 2010

Make sure the plater is not using a wax or silica sealer. In my experience you should be able to bond to olive drab.

Brian Palecek
- Norwalk, Ohio

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