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topic 11316

Gold Flash on Plastics?


 

Looking for information of Applying Gold Flash Directly onto Plastics?

Eoin Lynch
- Manchester, New Hampshire


 

Dear sir:

We have to know the kind of plastic (hope it is A.B.S). If so you maybe etch it (chromic and sulphuric acid) etching then you sensitizing it in tin chloride finally plated with gold by electroless gold.

Thank and best regards,

RAAFAT ALBENDARY
N.P.E - Cairo, Egypt


 

Dear Raffat,

What type of reducing agent in electroless gold?

Best regards,

Prasarn Hutpattanasilp
- Samutsakorn, Center, Thailand


 

Base material abs.first etching in chromic acid & sulphuric acid.

Rinse followed by HCl neutralization then rinse.

Simultaneous sensitisation and activation in Pd activator.

Rinse and accelerate in H2SO4 rinse and finally to electroless nickel then acid bright copper, intermediate bright nickel and strike gold.

Umar Farooq
electroplating shop. - Pakistan



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