David S. Peterson
Cleaning the Mold Release Agent Off of Aluminum Castings
Question: We are trying to clean the mold release agent off the aluminum castings we purchase.
Read MorePowder Coating Over Finished Chrome Parts
Question: We have a four-stage washer with a first-stage iron phosphate wash heated to about 130°F, two fresh water rinses and a final seal rinse.
Read MoreE-Coat Prep
Question: Please advise if you know of a best practice for cleaning or other surface preparation for e-coating that needs to be “secondary crimped.” L.N.
Read MoreElectrolytic Metal Recovery
Question: I understand that an electrolytic metal recovery (EMR) process can remove up to 90% of metals from an industrial wastewater stream.
Read MoreCleaning Method
Question: I had a local metal fabricator cut a shape out of a 7×10 ft ×1/2 inch thick out of cold roll steel to be used as a tabletop.
Read MoreHow to Clean and Preserve Copper Plating
Question: We have a little problem with copper plating on torlon plastic parts.
Read MoreUltrasonic Cleaning and Manganese Phosphate
Question: I use a manganese phosphate conversion coating in my polymer coating business.
Read MoreCleaning Before Powder Coating
Question: We design and fabricate aluminum exhibits and have used the same company for all our powder coating needs, mostly aluminum.
Read MoreWD-40 and Heavy Oil-Based Cutting Fluids
Question: I need help with documentation on the problems with powder coating when an in-line fabricator uses WD-40 and heavy oil-based cutting fluids and the effect it has on my pretreatment and final results.
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