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Newsletter Advisory Council NACE Meeting 2016-03 WJ IN Vancouver BC

September 19, 2016

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New Build-Brazil; ISO Meeting Trip Report NACE Corrosion 2016 March Vancouver BC By: Lydia Frenzel I, Lydia Frenzel, scrutinized the program to see if the UHP WJ/ paint maintenance community might find a niche for applications as this conference has paint/coatings, railcar, marine, and pipeline sections but focuses on corrosion, cathodic protection, alloys-and metals. Prior […]

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Microscopic Analysis of Steel after Waterjet Cleaning

February 25, 2016

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In the late 1990’s,  I received a report from Materials Evaluation Laboratory.  The report is copyrighted.  The pump company had cleaned UHP WJ on panels supplied by a major oil company.  Materials Evaluation Laboratory analyzed the substrate with microscopy and metallurgy compared to abrasive blasting.  This was at the time that UHP WJ was scarce and […]

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

February 4, 2016

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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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Quality of Water for Use in High Pressure Pumps

October 29, 2015

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

October 22, 2015

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

August 27, 2015

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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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