NIGP 31540: Coatings, Protective (for Metal)

NIGP 31540 Coatings, Protective (For Metal), an Item code, encompasses epoxy coating, mortar lining, and recoating services that state and local water utilities, public works departments, and infrastructure agencies apply to steel piping, valve components, and interior concrete surfaces to prevent corrosion and extend asset life. The work includes surface preparation, application of protective coatings and linings to existing metal infrastructure, and coordination with larger rehabilitation projects—notably absent from recent solicitations are standalone coating supply contracts or off-site industrial coating services, which suggests the code in state and local practice centers on in-place rehabilitation of public utility assets rather than commodity paint or coating material procurement.

Long Beach Public Utilities Department is the only recent issuer identified, soliciting under IFB UD26358 (response date October 8, 2026) for the Groundwater Treatment Plant Filter Gallery Valve Rehabilitation Project—Phase 2, which includes recoating of surface wash-water piping and epoxy coating rehabilitation of 36-, 42-, and 24-inch steel pipe spools as part of a 250-calendar-day valve replacement and basin repair effort in Long Beach, California. The source contains no other recent opportunities, issuing bodies, or geographic activity outside this single Long Beach solicitation, limiting visibility into broader state-local procurement patterns under this Item code.