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Ted Mooney, P.E. RET
Pine Beach, NJ

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Will Zinc plating degrade/damage rubber oil seals?

Is there any compatibly issues with Zinc plating (ASTM B633-85 FE/ZN 5 with Black Chromate) and Nitrile rubber oil seals (NOK TC40627213.5x6Y) i.e. will this type of finish degrade/damage rubber seals? Please advise. TIA!

Jonathan Pryor
Ag - Gainesville, GA, USA
2005

BTW, this involves a metal part (wheel hub) that is powder coated and looking to change it to zinc plating as previously detailed. This part comes into contact with a rubber oil seal on the axle and I�m not sure if the zinc plating will degrade/damage the rubber seal.

JP
- USA
2005

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