Arthur S. Kushner

Arthur S. Kushner Consultant

Electroplating

Decorative or Hard Chrome Plating?

Should I use decorative or hard chrome for plating brass handrails?

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Electroplating

Plating on Polyetherimide

I recently received a request to plate gold on a material called Ultem. What is the composition of this plastic, and what is the best method for plating it with gold?

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Electroplating

Triple Gold Plating

What does “triple gold plating” mean? Is this an actual combination of deposits or a marketing/sales selling point?

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Electroplating

More on Black Finish on Stainless

One of our readers has suggested another process for getting a black finish on 430 stainless steel.

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Electroplating

Zinc Corrosion

We have been experiencing white corrosion (zinc oxide) while our steel components are in storage. All of these assemblies are nitrogen-brazed components and then are subject to clear zinc plating.What do you think is the root of our problems?

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Electroplating

“Lumpy” Stannate Tin

I am having problems plating stannate tin on parts that have a copper flash. Parts are “lumpy” and dewetted.

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Electroplating

Plating Copper Bus Bars

Why are the copper bus bars in our plating facility nickel-plated?

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Electroplating

Flaking Nickel

Our stripping process sometimes does not remove all of the nickel plate. When re-plated, the areas that still have “old” nickel on the surface tend to flake. Do you have any suggestions for solving this problem?

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Electroplating

Plating Stainless Steel

We plate carbon steel with brass, and our process consists of hydrochloric acid pickling, rinse, cyanide brass plating, or copper and zinc followed by diffusion. Would it be possible to plate stainless steel with the same process?

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Electroplating

Stripping Copper-Nickel-Chrome

Is there a method for stripping copper-nickel-chrome deposits from rejected zinc diecastings?

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Electroplating

Stripping Tin from Copper

I recently received some old tin-plated copper to be replated. What methods can remove the old tin layer without harming the copper?

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masking

Plating Q&A: Black Finish on 430 Stainless Steel

A reader asks 'Do you know of a way to get a black surface finish on 430 stainless steel screws that will stand up to the road blast under a car?'

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