Arthur S. Kushner Consultant

Gold-Plating Problem

How do I prevent gold-plated sterling silver from tarnishing?

Blisters and Stains

We are using a number of different plating vendors with the same result: delayed blisters and stains. The blistering and staining does not occur all the time, and none of our suppliers has been able to define root cause. What are your thoughts on this?

Black Spots on Acid Chloride Plated Fasteners

Black Spots on Cadmium Plating

Failing Electroless Copper Bath

Stains Using Cyanide Copper Plating Bath

Copper Flash on Beryllium/Copper Alloys

White Spots on Gold

Gold Jewelry Nomenclature

What is the difference between gold-filled and gold electroplate?

Sulfamate Nickel Problem

Our sulfamate nickel plating bath is giving us problems. Most recent tests show the chloride content to be 10.15 g/L, and our control limits are 3-9 g/L. What can I do to reduce the chloride content? What will happen if the chloride content is too high? What caused the chloride content to increase?

Plating Gold on 316 Stainless Steel

Is there a way to gold-plate on 316 stainless steel without using nickel?

Plating Zamak Jewelry

Our company produces pendants and other jewelry parts out of Zamak metal. We find that the finished products have pores that we are unable to cover with the copper plating that we apply. Can you suggest any processes that will cover these pores?