Parts Cleaning Clinic
David S. Peterson

David S. Peterson

Dave Peterson has been involved with the industrial parts cleaning industry for 25 years. During that time, he has enjoyed a variety of experiences and challenges including the search for environmentally acceptable methods of and alternatives to halogenated solvent degreasing, process chemical formulation, new equipment specification, purchase, installation, as well as process development and optimization utilizing six sigma techniques.

Dave has held a variety of positions of increasing responsibility from process chemist to his current role as manager-materials development at the global headquarters of Modine Manufacturing, in Racine, Wisconsin. In addition to process cleaning, Dave is responsible for laboratory management, which includes failure analysis, production problem root cause analysis, supplier evaluation, corrosion testing, and materials development projects. He collaborates with his colleagues in Europe and leads activities and cooperative projects in South America and Asia.

For fifteen years, Dave has authored the bi-monthly Cleaning Clinic in addition to publishing several articles and giving conference presentations, two of which were chosen for best paper. Additionally, he authored the book A Practical Guide to Industrial Metal Cleaning, published by Hanser Publications. Dave has a B.S. in chemistry from Carroll University and a Masters in materials engineering from Auburn University.

Have a question for Dave? Send him an email.


The latest from the Parts Cleaning Clinic

Powder Coating Clinic: Avoiding Rust on Parts

Q. We apply lighter colors of powder to our ticket machines for parking lots. Some go into covered garages, but many of them are exposed to the outdoor elements. We have some problems with rust around the base of the machines and also on corners. We currently run the steel parts through a five-stage iron phosphate washer, then apply a coat of TGIC polyester powder to a thickness of around 3 or 4 mils. What else should we be doing to prevent rust?

Ask an Expert Published: November 01, 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: November 01, 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 to size?

Ask an Expert Published: November 01, 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 total acid at 20-24 points, and the total fluoride at 1,500 ppm. Bath temperature is 40°C to 45°C. Any suggestions?

Ask an Expert Published: November 01, 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 sizes of steel, stainless and aluminum fabrications from stampings, cut to length steel tubing, and sheet metal fabrications up to 6 feet long and 3 feet wide. What are my options?

Ask an Expert Published: November 01, 2016

What’s New in the Defend Trade Secrets Act of 2016

The Defend Trade Secrets Act (DTSA) of 2016 passed with overwhelming support and the Act is now effective, impacting how a company can protect its assets. Below is a recap of what is new and what every company should be looking to do in light of this new law.

Ask an Expert Published: October 01, 2016

Parts Cleaning Clinic: Zinc Shot Blasting, Zinc Plating Alternatives

David S. Peterson talks zinc shot blasting, zinc plating alternatives, and advantages to reducing the heating of alkaline cleaners.

Ask an Expert Published: October 01, 2016

Parts Cleaning Clinic: Cleaning Oxygen-Free Copper

Q. Could you share with me how to lower or eliminate this defect and how to utilize automatic cleaning?

Ask an Expert Published: July 22, 2016

Cleaning Q&A: Coating a Threaded Area

Why won’t this conversion coating take to a threaded area?

Ask an Expert Published: June 01, 2016

Cleaning Q&A: Lighting for Inspection

What is the best type of lighting for a designated buff and finesse area?

Ask an Expert Published: June 01, 2016

Cleaning Q&A: Removal of Zinc Phosphate

How can we effectively remove phosphate from a steel surface after the drawing process?

Ask an Expert Published: June 01, 2016

Cleaning Q&A: Rinsing Following Cleaning

What temperature and at what rinse time should the first deionized water rinse bath be?

Ask an Expert Published: June 01, 2016

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