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A DIGEST OF
ARTICLES written by Dr. Lydia Frenzel and published in the
CleanerTimes.
These articles are provided with the permission of CleanerTimes, a monthly
trade journal serving the pressure cleaning/water blasting industry. They can be
contacted at www.cleanertimes.com or
800.443.3433
Associations are the Life Blood:
We must have impact on preserving our environment and our opportunity to do
business within it, while influencing the regulations that govern our products
and processes.
Power Washers of North America (PWNA) continually support its membership by
utilizing its publications, training programs, certification, seminars, and
trade shows to stay on the cutting edge of new technology.
We reached out for the help of, and recognition by, the coatings manufacturers
to bring the goal of identity to reality.
ABC's of Surface Preparation:
This column is for anyone who is making the transition from cleaning to
surface preparation.
Recently I missed the mark badly when 1 was lecturing on "Coatings Removal
and discovered that the jetters I was addressing; hid only experienced
scarifying concrete with blast pots or waterjetting.
Many industrial cleaning companies complete projects all year long that DON'T
involve repainting.
· take paint and rust off steel where it will be repainted.
Have we established a pressure waterjetting (UH P WJ) or wet measurement from
top of the peak to the bottom of the valley in steel surfaces or provided a
"clean" mortar-pebble surface in concrete?
Trade organizations and associations have developed extensive standards for
metal and concrete surface preparation that focus on the visible appearance.
Personalities:
Summary not available.
Wisdom and Marketing:
Summary not available.
Just Add Water:
Summary not available.
Partial Removal, difficult judgements:
Condition E Multi-Coat Paint after a single WJ pass.
The chip is an indication of a problem under the paint.
WJ-4 Most companies would check the adhesion and brittleness of the adherent
paint before repainting.
Spot results from welding on the back side.
Many companies would paint at this stage because the primer is in good
condition.
The steel has the original pattern plus the heat marks.
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