David S. Peterson

David S. Peterson

Parts Cleaning

TCE Acid Acceptance

What are a good acid acceptance test kit and acid stabilizer for trichloroethylene?

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Parts Cleaning

TCE Process Improvement

How can one optimize the trichloroethylene (TCE) process to address high material usage and poor cleaning?

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Parts Cleaning

Chrome Pretreatment

What are effective pretreatments before painting over chrome?

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Parts Cleaning

Pretreatment Duration

How can I shorten the pretreatment time for my batch powder painting operation?

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Parts Cleaning

Conversion Coating Questions

Reader looks for information on conversion coatings and processes.

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Parts Cleaning

Zinc Phosphate of Brazed Steel Parts

What is causing etching of tungsten carbide and copper alloy braze materials after zinc phosphating?

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Electrocoating

Cleaning Ecoat Paint Hooks

Is there a process or substance to keep hooks cleaned without taking them off the paint line?

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Titration of Nitric Acid Neutralization

Is a titration using hydrochloric acid for the titrant and phenolphthalein as the indicator the proper method for determining the sodium hydroxide percentage in a nitric passivation process?

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Burner Tube Replacement

What would be a good project timeline for installing a new burner tube in a pretreatment tank? What steps would be required?

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regulation

Tertiary Butyl Acetate Regulations

Has the Texas Commission on Environmental Quality approved TBAC (tertiary butyl acetate) as a VOC-exempt solvent?

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Parts Cleaning

Periodic Reverse Electrocleaning

We are running high-speed, reel-to-reel plating of gold-nickel-tin and palladium-nickel, and using bipolar cleaning. I am somewhat confused about electrical connections in bipolar cleaning systems.

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Parts Cleaning

Mil-Spec for Compressed Air Quality

Is there a procedure or mil-spec for point-of-use inspection to verify the cleanliness of the compressed air supply used in chemical processing area?

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