UNSPSC 12164803: Structural water repellent

An additive used to make construction materials waterproof or water resistant by use of fatty acids to block pores within the concrete, preventing water passage.

UNSPSC 12164803 Structural water repellent is a Commodity code under which state and local governments procure protective coatings, sealants, and waterproofing materials for water infrastructure rehabilitation and maintenance. The recent solicitations show concrete application in tank interior coating systems, concrete crack repair through polyurethane injection, epoxy coating and mortar lining of steel pipe spools, and blanket-order waterproofing services across facilities. Issuing bodies include municipal water utilities (Long Beach Public Utilities Department, West Basin Municipal Water District), cities (Arlington, Peoria), and higher-education institutions (University of Texas at Arlington). Water treatment and storage facility rehabilitation dominates the code's activity — the work involves surface preparation, application of protective coating systems to tank interiors and pipes, disinfection, and crack sealing in concrete structures that contact potable or treated water.

Recent activity concentrates in California and Texas. Long Beach Public Utilities Department posted solicitation UD26358 on September 4, 2026, for the Groundwater Treatment Plant Filter Gallery Valve Rehabilitation Project - Phase 2, with bids due October 8, 2026 under an IFB structure; the scope includes mortar lining and epoxy coating of steel pipe spools and polyurethane foam grout injection repair of approximately 1,500 linear feet of filter basin exterior concrete wall cracks. West Basin Municipal Water District issued RFB RFBTH0129 on May 14, 2026, for the Title 22 Filters 1, 5, and 10 Rehabilitation and Replacement Project, with a bid opening May 7, 2026, encompassing filter rehabilitation and equipment replacement under California water treatment standards. The City of Arlington, Texas solicited bids under solicitation 260296PROJECTWUTK24002 on July 29, 2026, for Collins 2.5 MG elevated storage tank rehabilitation, including interior coating system application and disinfection, with bids due August 20, 2026. The University of Texas at Arlington issued an RFP on May 26, 2026, for an indefinite-quantity blanket order covering masonry restoration, brick and paver repairs, and facilities waterproofing, with a potential six-year contract value of approximately $600,000 if all option periods are exercised; the mandatory pre-proposal meeting was April 16, 2026, and proposals were due April 30, 2026. California prevailing wage and bonding requirements are standard across water utility projects in the code.