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Copper and Bright Dips
Can you suggest a good formulation for bright dipping of copper alloys? I require a bright dip that will give me good polishing of the copper surface.
Ask an Expert Published: 2/1/2012
Electroless Nickel on Aluminum
s there a special process for plating electroless nickel on aluminum?
Ask an Expert Published: 8/26/2011
Zinc 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.
Ask an Expert Published: 5/24/2011
The 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.
Ask an Expert Published: 5/24/2011
Brighteners and Solder Failure
A customer claims that brightener and grain refiner concentrations in a plating bath will affect the solderability of the plated surface.
Ask an Expert Published: 5/24/2011
Nickel in a Barrel
Our company does a lot of bright nickel plating. One area that we have problems with is the barrel nickel plating of parts that have somewhat complex geometries. For example, the nickel plating on the inside of some parts becomes dark after drying.
Ask an Expert Published: 5/1/2011
Plating On Beryllium/Copper Alloys
We are using the same cleaning process that’s used for other copper alloys that we plate. Invariably with the copper beryllium alloys, we see etching on the parts. How can we solve this problem?
Ask an Expert Published: 5/1/2011
Stripping Silver From Copper and Copper Alloys
How does one go about stripping silver plate from copper and copper alloys?
Ask an Expert Published: 5/1/2011
Where did the Brass Go?
We are new to the process of plating zinc diecasts. The few samples we have prepared so far look great after plating, but after top coating and baking, the brass seems to disappear. What are we doing wrong?
Ask an Expert Published: 5/1/2011
Shadow Plating
On some of our parts, we see what appears to be a “shadow.” What causes this and how can we prevent this from happening?
Ask an Expert Published: 3/31/2011

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