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Differences in Masking and Plug Materials
Q. Can you explain the differences between masking caps and plugs?
Ask an Expert Published: 2/1/2017
How to Barrel Plate Sulfamate Nickel
Q. We have a 400-gallon sulfamate nickel tank used to process ferrous-based parts that are rack plated to 18 microns for a high heat exposure application. We experience many problems with poor adhesion, flaking and deposit poor ductility resulting i...
Ask an Expert Published: 2/1/2017
EN Plate-Out on Equipment
Q. We run a low-phosphorous electroless nickel bath and recently pulled quite a few pounds of nickel pellets from our tank after draining. How do we prevent this kind of plate-out?
Ask an Expert Published: 1/18/2017
Uniform Thickness Distribution of Brush Plating
Q. Why isn’t my brush-plated deposit uniformly distributed? Derek Vanek from Sifco says in order to achieve uniform deposit thickness, a well-designed, properly-used plating tool is critical.
Ask an Expert Published: 12/1/2016
Improving Acid Zinc Coverage and Brightness
Q. We plate our parts in a mixed acid-zinc rack bath, containing both ammonium and potassium chloride. How do we improve our zinc deposit’s clarity, brightness and thickness, especially in the low current density (LCD) areas of our parts without sac...
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Brass Cleaning
Q. How do I clean brass to be powder coated? Expert David Peterson explains that, assuming you have some mill oil or metalworking lubricant on the surface of the brass, the minimum pretreatment needed is a degreasing of some type.
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Cleaning of Inconel
Q. What cleaning methods are recommended for finishing Inconel 718? Can this material be passivated or utilize the Summa process as 300 and 400 series stainless steel, or is there another way to remove the contaminants in regards to machining parts ...
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Phosphate Coating Problems
Q. We electrocoat sheet metal, iron castings (machined and non-machined) and aluminum castings (machined and non-machined surfaces) and are having problems with poor phosphating on aluminum substrates. We maintain the free acid at 0.7-1.1 points and...
Ask an Expert Published: 11/1/2016
Parts Cleaning Clinic: Pretreatment Equipment Suppliers
Q. I am researching manufacturers of aqueous part washers and phosphate pretreatment systems for powder coating, looking for companies that build conveyor systems, washers and treatment systems; not parts washers. The parts to be cleaned are various...
Ask an Expert Published: 11/1/2016
Replacing Nickel with Tri-Metal in Electronics Plating
Tri-metal—or white bronze—is becoming an increasingly popular topic and can be used as a replacement for using nickel in plating applications.
Ask an Expert Published: 10/1/2016

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