pittsburg tank and castagra water tank coating project
TRANSCRIPT
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Pittsburg TankEcodur 201: Water Tank Coating Project
Castagra Products, Inc.
Introduction
Concrete silo-style water towers
are less common than the bulbous
ones that commonly stand beside
small towns in North America.
When and if they develop leaks, a
typical solution to the problem is to
line them with steel and apply a
conventional epoxy coating. In this
case, a water tower in Pickle
Lake, Ontario, Canada, had a long
history of leakages.
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The Problem
A permanent leak prevention solution plan had
involved welding steel patches and blowing in
liquid concrete and sand to provide a
supportive base. But what was finally needed
was a highly robust corrosion protection
coating solution that could withstand natural
movement associated with temperature
fluctuations. Conventional epoxy coatings
typically micro-crack with expansion and
contraction of steel, allowing moisture and
corrosive elements to attack the steel it was
supposed to protect.
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The Solution
The steel tank was duly prepped with Ecodur
201S chosen to provide a robust, flexible, long
term solution with a coating that was also rated for
safe contact with potable water, the NSF 61 rating.
Ecodur 201S also had the additional advantages
of being VOC-free with no solvents used either in
the content, application itself, or post application
clean-up and spray equipment maintenance.
Ecodur also noted for being a one pass treatment
and its ability to re-bond to itself indefinitely for
those all-important touch-ups and possible longer
term maintenance treatments.
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Application Results
At various stages, the coating was
stopped to replenish supplies.
Again, because of Ecodur’s infinite
ability to re-bond, downtimes did not
compromise the integrity of the entire
coating. The client commented very
favorably on this as well as the lack
of odor, adjustable cure rates and
relative ease of application. The tank
was rapidly returned to service within
hours of completion and no further
leaks have been reported.
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Matt Cullen, VP Sales, Castagra Products
Tel: (303) 483-3245
Patrick Heltsley, Pittsburg Tank
Don Johnston, Pittsburg Tank
Contact Us