David S. Peterson
Ultrasonic Cleaning
Question: I am manufacturing pipe fittings and using graphite as a dry lubricant while the steel is being formed.
Read MoreIron Phosphate Acid Cleaner
Question: Will pretreating chrome moly tubing with an iron phosphate acid cleaner at 150 F and a 4.5 pH for 10 seconds cause any heavy metals to be dissolved into the waste effluent?
Read MoreProduct Information
Question: I have gone through the web site of a company and found glycolic acid for metal finishing and cleaning, can you give us some more information about glycolic acid?
Read MoreSpots on Aluminum After Alkaline Cleaning
Question: As of late, I have been experiencing some intermittent spotting on mainly 7000 and 2000 series alloys after immersion in our alkaline cleaner . The company’s lab reports tell me the blackish/whitish spots are actually small particles of silicates and phosphates that are plating onto the aluminum surface.
Read MoreRemoving WD-40
Question: Some of our clients use WD-40 on their machines to allow parts to slip better in-process or when holes are drilled.
Read MoreTrichloroethylene
Question: I am trying to buy some trichloroethylene for art work Would you please advise me on where to order or buy it?
Read MoreCleaning Question
We manufacture dump bodies for trucks and are looking for suggestions on cleaning them prior to priming and painting.
Read MoreZinc vs. Iron Phosphate
Question: I have a technical question from a vendor, which I will pass on to you.
Read MoreCorrection on Passivation Specification
Question: In the August issue of Products Finishing magazine you answered a question about passivation from J.
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