February 4, 2016

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Comparison of Wet Abrasive Blast (WAB) and Dry Abrasive Blast Cleaning

There are many methods of wet abrasive blast cleaning (WAB) in surface preparation to remove coatings. Since the 1980’s, Carolina Equipment and Supply Co. (CESCO) has been supplying WAB equipment  along with recycling methods. Recently CESCO sent me two youtubes to directly compare traditional dry abrasive blast cleaning and Wet Abrasive Blast Cleaning using their […]

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December 15, 2015

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Downloads Section

The upper left Downloads icon leads to the page where papers can be downloaded. If you need to know, click on Downloads page.

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December 3, 2015

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Lydia Frenzel – A Life Devoted to Excellence

Cleaner Times writer  Adia Walker wrote an extensive feature on Lydia and Charles Frenzel upon the occasion of Lydia being presented the SSPC John D. Keane Award at their 2015 convention.  Cleaner Times has a long history of  writing for the service companies with safety and business hints as well as technical articles on pressure […]

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October 29, 2015

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Quality of Water for Use in High Pressure Pumps

For 30 years, I have received questions about the quality of water that should be used for removal of coatings. How much dissolved material or minerals gets left on the surface? Just recently after an hour long webinar to 200 people, the questions was “What shoul the quality of the water be?” Among the first […]

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October 22, 2015

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EVALUATION OF 20,000 PSI WATER JETTING FOR SURFACE PREPARATION OF STEEL PRIOR TO COATING OR RECOATING

EVALUATION OF 20,000 PSI WATER JETTING FOR SURFACE PREPARATION OF STEEL PRIOR TO COATING OR RECOATING 1983 Dr. Lydia M. Frenzel, Dr. Robert DeAngelis, Dr. John B. Bates The original monograph which started the SSPC, NACE, and ISO to use waterjetting (hydroblasting, aquablasting) for coatings removal and surface preparation. Click on the link to get […]

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August 27, 2015

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Surface Preparation- Why surfaces with more surface area look darker.

Surface Appearance with Surface Area. Back in the early 80’s, Dr. Lydia Frenzel and myself took a series of water-jet processed steel panels and examined them with a scanning electron microscope. We were hoping to receive confirmation of what our computer models told us; that is, water jetting at or above a threshold pressure produced […]

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