City of phoenix lift station 77

Secondary Containment- A Systems Approach to Durable Chemical Resistance

The City of Phoenix is rapidly expanding and is challenged by keeping up with enough water & wastewater treatment facilities. Phoenix has become a target city for new manufacturing and industrial facilities. When an extremely large microchip manufacturing facility began construction, there arose a need to build new assets to handle the wastewater stream.

Lift Station 77 was built in 2022 to service the microchip plant. AO Painting applied the Tnemec 239SC Chembloc Mortar Reinforced Mat (MRM) secondary containment system. The need for a secondary containment system is more than just applying chemically resistant coatings. The 239SC system provides protection from chemicals along with impact resistance, abrasion resistance and resistance from cracking.

M2 LS77 Static 1 Edited

Following best practices, the concrete was profiled to an ICRI CSP-5 or better and Tnemec Series 218 MortarClad, an epoxy modified cementitious repair mortar, was applied to create a paintable surface and help eliminate outgassing. The 239SC novolac resin was used to make a mortar base coat ensuring chemical resistance throughout the system. Fiberglass is then embedded into the wet mortar and saturated with more novolac resin. Tnemec Series 282 Tneme-Glaze, a highly chemically resistant novolac epoxy, was applied in two coats for an aesthetically pleasing, chemically resistant surface. The system was finished with a coat of Tnemec Series 290 CRU, a chemical resistant urethane, to provide long term protection from the strong UV exposure of Phoenix, AZ.

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