Arthur S. Kushner Consultant
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eeling Gold Revisited
Our plating shop is having problems with plating gold components that have been nickel plated. We find that we get inconsistent results with the gold adhering to the nickel plate. This causes peeling and blistering of the gold plate.
Read MoreAging of Plugs
We use nylon, silicone and Teflon masking plugs and screws for electroless nickel on aluminum. Can you tell me what we can expect for aging?
Read MorePlating Electrolytic Nickel on EN
We have adhesion problems when plating nickel over electroless nickel. The bath analysis for both solutions is within the required tolerances. We are not using a nickel strike prior to the electrolytic nickel plating step. Do you have any suggestions?
Read MoreNickel Balls
We have a problem with our EN (high-P): after two to three turnovers, we have nickel balls (about 50-100 microns) forming on our parts; after one to two more turnovers it’s OK again.
Read MoreElectroless Nickel on Aluminum
s there a special process for plating electroless nickel on aluminum?
Read MoreSintered Metals
Our zinc plater is having a heck of a time with a part that is made from sintered steel. The shop does a good job with all of our non-sintered parts. Do you have any advice for solving this problem?
Read MoreEconomics of Phosphating
Can you give me an economic analysis of the advantages of phosphate coatings of steel?
Read MoreNitric Acid
Which grade of nitric acid do you recommend for post-treatment of zinc-plated parts? There are three grades listed by my chemical supplier: commercial/technical, L.R. and A.R.
Read MoreZinc Plating and Crystal Growth Revisited
In the February issue, I answered a question regarding formation of excess crystals in a potassium chloride zinc plating bath. I recently received additional information from one of the plating shops regarding its problem.
Read MoreIs It Real Gold? What is Carat Gold?
At a recent party, I was asked what the difference is between “gold filled” and “gold electroplate.” I told them, but I want to verify the answer I gave them. What is the difference?
Read MoreThe Peeling Gold Problem
We are a decorative plating company with gold over bright nickel being one of our specialties. We continue to have problems with gold peeling from the bright nickel layer.
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