David S. Peterson

David S. Peterson

Parts Cleaning

Stainless Pretreatment for Painting

I am doing a project to develop a new chemical for stainless steel pre-treatment prior to painting or powder coating. Any suggestions regarding methods or processes for pretreatment?

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Parts Cleaning

PVC Removal From Cables

What solvents can be used to remove PVC from copper and aluminum cables?

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Parts Cleaning

pH Check

We have been checking the water in our steam coils in our cleaners for alkalinity by adding phenolphthalein indicator to the solution from the coil. If it turns red, we know caustic is present. Is there another way to check for this?

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Parts Cleaning

Paint Adhesion on Zinc-Coated Steel

We paint washing machine housings from an external supplier. The material used is zinc coated, and powder painting with a polyester +HAA based paint shows really bad bonding.

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Parts Cleaning

Gear Cleaning

The nitric acid bath generates a dark smut on the cast iron gear that will wipe off to the touch. How can I remove it in my operation?

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Powder Coating

Tractor Cab Coating

I think I am looking at a failure of a powder coating on tractors I am considering purchasing.

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Parts Cleaning

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?

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Parts Cleaning

Pretreatment Problems on Galvanneal Steel

What we are seeing is craters in random places in the surface of the painted parts.

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Parts Cleaning

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.

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Parts Cleaning

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.

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Odor Control

How do I keep the odor at bay on a three-stage iron phosphate spray line?

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Parts Cleaning

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.

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Filtration Systems
Pretreatment Washer and Finishing Equipment
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