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topic 4849

Zinc Diecast plating problem.


(2000)

I have plating problem with Zinc Die cast. It often bubbles. What can I do to prevent this? How can I strip this nickel plating off the Zinc Die-cast to start over again? Appreciate any suggestion.

Steven CHEN
- Auckland, NEW ZEALAND


(2000)

Please give info regarding your plating cycle to enable us to help you out.

sara michaeli
sara michaeli signature 
Sara Michaeli
chemical process supplier
Tel-Aviv, Israel



(2000)

Hello, Steven.

Metalx [a finishing.com supporting advertiser], among others, offers strippers for this purpose.

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


(2000)

Try using about 700 gms/ lit of Sulphuric Acid with 4 gms / lit of copper sulphate or 4 gms/ lit of glycerol. Current -Cathodic.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind supporting advertiser
Bangalore, Karnataka, India

saify logo


(2001)

Dear Steven,

Zn diecast article should be first Copper plated -followed by Nickel or Nickel/chrome plating.

A.S. Sridhar
- Bangalore


(2003)

To remove the nickel plating the best method is to sand blast the bubbling effect could be to impurities and/or hydrogen embrittlement,

David Weltsch
Disney - California



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