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Polycoat Hits Waterproofing Home Run!
| Project : |
Waterproof the concrete surfaces of potable 38 Million Gallon water aqueduct in Bogotá, Columbia |
| Products : |
Polyprime 3042 and Polyeuro® 5502 NSF-61
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Polyeuro® 5502 NSF-61
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FEATURES
* Zero VOC (100% solids)
* Excellent thermal stability
* Low temprature flexibilty
* Good chemical resistance |
* Seamless
* Odorless
* Meets USDA criteria
* No toxic vapors |
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* ANSI/NSF approved for potable water
* Coat Pipe 9” in diameter or greater
* Suitable for 5 gallon tanks or larger
* Coats carbon or mild steel metals without primer |
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Problem : |
The concrete potable water aqueduct in Bogotá, Columbia, owned by Empresa de Acueductos y Alcantarillados (Company of Aqueducts and Sewers) was in crucial need of structural repairs to its concrete tank separation joints and surface cracks. The 54 year-old aqueduct was losing water in excess of 100 liters (26.4 gal.) per second or 360,000 liters (95,000 gal.) per hour. Because this was drinking water, an ANSI-NSF approved solution was required.
The aqueduct’s total structure is approximately 144 meters (472’) in length and 110 meters (307’) in width. Its total potable water storage capacity is 143,000 cubic meters (38 million gal.) and meets the needs of over 3 million people in the surrounding area. The source of the aqueduct’s drinkable water is over 80 kilometers (50 miles) away.
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| Solution: |
Because this was the first polyurea application in Columbia, Specialty Coating Solutions, LLC was tasked to manage the project for Polycoat Products as well as train the local project contractors regarding the correct use and application of polyurea. The local project contracting firms included: Panexus Group, Flexa, Ing, and Ancla Ingeniera LTDA.
The Polycoat Products used in the aqueduct’s polyurea coating project were Polyprime 3042 and Polyeuro® 5502 NSF-61. Polyeuro® 5502 NSF-61 is an ANSI-NSF 61 approved polyurea for use in direct contact with potable water. It has zero VOCs (100% solids), forms a monolithic seal, and excellent thermal stability. |
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