John Durkee, Metal Finishing’s ‘Cleaning Times’ columnist, views the use of ultrasonic transducers as both ‘black art’ and ‘pure science.’
John Durkee, Metal Finishing’s “Cleaning Times” columnist, offers facility managers advice on addressing challenging, real-world cleaning situations.
John Durkee, Metal Finishing’s “Cleaning Times” columnist, provides an overview of OSHA’s recently revised HCS as it relates to those who use cleaning chemicals.
The pattern of use of perchloroethylene suggests that reductions in its use in parts cleaning will be slow due to trends in other industries.
In this column, I describe what aerosol-dispensed cleaners are, and how they are used.
For more than 80 years, the plating industry has been dependent on the use of various zincate and/or stannate solutions to assist in the plating of metals such as titanium, aluminum, and magnesium. It...
This is a column about parts cleaning that I have both wanted to write, and been concerned about writing, for some time. I had intended to write it on the 10th anniversary of closing of the Montreal...
This column discusses why parts drying is a problem with aqueous cleaning agents used as replacements for some solvents. I wrote about this topic in 1989. I have frequently updated the material, to...
In part I of this column, I showed how common open-top vapor degreasers can fail if used with solvent blends. The reason is the vapor produced from most binary solvent blends becomes enriched in the...
It is very unlikely that many newly developed cleaning solvents will be introduced in the coming years. The reasons include: the costs are too great; the expected return is too small; and limitations...
Washing, rinsing, and drying are processes: combinations of chemicals and equipment. When you make a selection to solve a cleaning problem, you have at least three chances to make mistakes.
