UNSPSC 12164900: Waterproofing agents

Chemical coating products used to increase water resistance of floors and walls of buildings.

UNSPSC 12164900 Waterproofing agents is a Class code under which state and local governments procure concrete sealers, epoxy polymer systems, and joint-sealing materials for pavement, bridge, and building infrastructure preservation. Recent solicitations show concrete penetrating sealers in bulk containers, deck-treatment epoxy overlays, silicone joint sealants for airfield pavements, and hot-poured asphalt joint sealants dominating the activity. Issuing bodies span state departments of transportation, county and city public works, airport authorities, school districts, and universities. State DOT offices and county transportation departments are repeat buyers; the Maine Department of Administrative and Financial Services, Texas DOT, Illinois DOT District 5, Collin County, and Santa Clara County each posted multiple opportunities under this code or closely related procurement activities in the past four months. Geographic spread includes Maine, Texas, Illinois, Georgia, California, Wisconsin, Pennsylvania, and Florida, with heaviest recent concentration in Texas and Georgia.

Representative recent opportunities include the State of Maine Department of Administrative and Financial Services posting RFQ 17A26041300000000000259 on July 1, 2026, seeking deck sealant systems and epoxy polymer concrete products with a July 15, 2026 response deadline and an estimated annual usage of 400 gallons of penetrating sealers, 400 gallons of single-layer treatments, 5,000 gallons of double-layer treatments, and 2,000 epoxy polymer concrete kits on a master agreement for all state agencies; the Texas Department of Transportation soliciting bids for Sikasil 728 RCS silicone sealant in 40 oz kits for bridge applications (solicitation 601340000066332, due June 26, 2026); Collin County issuing IFB 2026-277 for liquid asphalt products (due July 16, 2026, estimated annual contract value $100,000); Harris County Department of Education posting CSP 26/030MR for paving, asphalt, and concrete services through Choice Partners cooperative purchasing on June 18, 2026; and the City of Urbana issuing ITB for joint and crack sealing (Section 26-00714-00-PP, due April 21, 2026, with 266,382 linear feet of routing and 81,071 pounds of filling material). Most recent state and local activity is concentrated in the second and third quarters of 2026, with RFQ and IFB notice types predominating.