Ed Kanegsberg

September 2019

Soprano or Bass—What Ultrasonic Frequency to Use? Part 2: Being TACTful

As a professional in product cleaning, you probably have encountered the acronym TACT. The letters represent four key facets for effective cleaning, Temperature, Action, Chemistry, and Time. Action is the facet usually associated with ultrasonics. In Part 1, we focused on cleaning action and the relationship to frequency. However, ultrasonic cleaning involves all four facets. Read on and I’ll explain […]
July 2019

Soprano or Bass—What Ultrasonic Frequency to Use? Part 1

You are in charge of improving the cleaning of your company’s product. You think ultrasonic cleaning is needed but need to know which frequency is best. In this two-part article, we will explore aspects of ultrasonic cleaning to make it easier to choose; in some cases, a system with more than a single frequency may be optimum. High-frequency sound is […]
October 2014

Solvency —The Physics of Cleaning, Part 11

A cleaning chemistry is effective due to physical and chemical properties.  In the last issue of Clean Source (1), we discussed wetting of surfaces and explained that for a fluid to wet a substrate surface, the surface energy of the substrate needs to be greater than the surface tension of the fluid. However, there is more to cleaning than wetting. […]
September 2014

Wetting Surfaces—The Physics of Cleaning, Part 10

Summer may be almost over, but there’s still time for a splash in the pool or at the beach. Afterwards, jump into the shower to rinse off the salt, sand or pool chlorine. For the shower to do its job, however, it needs to wet your skin. This brings to mind what happens when we clean an industrial product with […]
April 2014

Defeating Raoul—Azeotropes, The Physics of Cleaning Part 9

Blends have proven useful in improving cleaning efficacy while at the same time reducing concerns of worker exposure, environmental damage or flammability. However, in most situations, the constituents of a blend volatilize or boil at different rates; the blend changes over time. This means that cleaning performance, materials compatibility, and flammability characteristics are likely to change. How do we get […]
January 2014

EPA Changes Direction—Again

Sometimes, a change of direction is a good thing. The phaseout of HCFC-225 is set for January 1, 2015.  Restrictions will impact manufacturing because either you or someone in your supply chain may use HCFC-225 for critical cleaning. In a move that gives manufacturers just a little relief, the EPA has formally proposed a rule that affects the HCFC-225 phaseout. […]