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Powder Stripping
We have an aluminum casting from which we need to remove powder coat. We have investigated sanding and chemical, but the heat process may have a very negative impact on the part shape. What are your thoughts?
Ask an Expert Published: 8/1/2010
Pretreatment Problems on Galvanneal Steel
What we are seeing is craters in random places in the surface of the painted parts.
Ask an Expert Published: 8/1/2010
Trailer Prep
What advice could you give me on steel prior to primer and painting of our trailers. I think ideally I would like to “treat” the steel as it arrives from the supplier, before we work it.
Ask an Expert Published: 6/1/2010
Bright-Dipping Brass
Our company has to make a major decision because we are going to try and replace the nitric acid (20%) bright dip line that we have used to clean brass fittings for the last 40 years.
Ask an Expert Published: 6/1/2010
Cleaning Expanded Stainless
We’re looking to install an in-line (or off-line) cleaning system that would degrease flat expanded metal sheet made out of 0.015-inch-thick SS T409 material.
Ask an Expert Published: 4/1/2010
Plating Strip
I have a part made from Monel that was plated with nickel strike and silver plated. I need to strip the plating from the outer diameter and leave the inner diameter plated without attacking the base metal. Any suggestions?
Ask an Expert Published: 4/1/2010
Passivation (Times Four!)
1) I would love to be able to get my hands on a book that can teach me a great deal more on the passivation process. Is there such a book out there? 2) We rinse parts in a closed-loop bath that is not controlled for pH or any other content parameter...
Ask an Expert Published: 2/1/2009
Aluminum Contamination
If some of the aluminum made it down into the tank, would it react with the cleaner and make it unable to clean?
Ask an Expert Published: 12/1/2008
Process Classification
A facility uses a dilute solution of hydrofluoric and phosphoric acids to pretreat aluminum parts prior to painting. Should this process be classified as conversion coating, etching, cleaning orsomething else? Would the acids produce a phosphate coa...
Ask an Expert Published: 12/1/2008
Stripping Chrome-Plated Parts
We have etching, erosion and severe mass loss and are losing the functional dimensions. Is this happening because the nickel is too low and the chlorine is now too harsh against the chrome and other component into the 2101? What would you recommend...
Ask an Expert Published: 12/1/2008

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