Kirk Road Hydropillar

associated markets
Water Storage Tanks
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There’s no hiding a 209-foot-tall, 2 million gallon hydropillar that sits 30-feet from a major thoroughfare and is surrounded by a residential area, which is why engineers for the new water tank in Austintown, Ohio specified a coating system from Tnemec known for its high gloss and color retention. “The product engineer likes high performance and long service life from a coating system,” according to Tnemec coating consultant Sean Carlin. “That’s a real attribute of Series 700 HydroFlon, a two-component, fluoropolymer polyurethane. It provides a very high level of aesthetics, excellent application characteristics and superior ultraviolet light protection.”

The coating system, which the project’s engineering firm has used for years, featured Series 91-H2O Hydro-Zinc, a two-component, moisture-cured zinc-rich aromatic urethane, as the primer on both interior and exterior steel. Interior steel was prepared in accordance with SSPC-SP10/NACE No. 2 Near-White Metal Blast Cleaning prior to spray-applying Hydro-Zinc. Exterior and interior dry steel was prepared in accordance with SSPC-SP6/NACE No. 3 Commercial Blast Cleaning before priming.Kirk Road Hydropillar Exterior

Following assembly, the tank’s interior received two coats of Series 20 Pota-Pox, a polyamide epoxy, which was spray-applied. Exterior steel received an intermediate coat of Series 73 Endura-Shield, an aliphatic acrylic polyurethane, which was roller-applied, followed by a finish coat of HydroFlon that was also roller-applied. HydroFlon is an excellent alternative to four-coat systems since it eliminates the need for a clear coat.

The 50,000-square-foot surface of the tank required approximately 450 gallons of Hydro-Zinc, 400 gallons of Pota-Pox, 200 gallons of Endura-Shield and 150 gallons of HydroFlon, Carlin estimated.

“This was a difficult tank to paint given its proximity to nearby houses and Kirk Road, which has a high level of traffic,” Carlin added. “On a tank that tall, even when you’re using rollers the wind can carry a droplet of paint onto a house or passing vehicle. The job required a lightweight containment tarp and had no overspray complaints. It was really a super-human effort.”

project information

Project Name

Kirk Road Hydropillar

Project Location

Austintown, OH

Project Completion Date

October 2005

Owner

City of Youngstown Water Department

Engineer

MS Consultants, Youngstown, OH

Fabricator

CB&!, Clive, IA

Applicator

CB&I, Chicago, IL

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