UNSPSC 31411805: Fiber reinforced diaphragm seal

An elastomeric or other polymeric diaphragm seal reinforced with glass, carbon or other fibers

UNSPSC 31411805 Fiber reinforced diaphragm seal (Commodity) encompasses bridge joint seals and related sealing materials that state and local transportation departments procure to maintain highway and bridge infrastructure. The code captures compression seals, silicone coated pre-compressed foam seals, gland seals, sealants, primers, backer rod, and splice and transition materials used in bridge joint applications. State transportation departments and counties issue RFQs and IFBs under this code; the most active recent solicitation is the Maine Department of Transportation's RFQ for bridge joint seals and related materials through the State of Maine Department of Administrative and Financial Services. This procurement involves multiple seal sizes (ranging from 1/2" to 6" in width), lubricant adhesive, sealant, primer, backer rod, and splice materials, with delivery required to nine MaineDOT locations across five regions statewide.

The code shows limited recent activity concentrated in Maine, where the MDOT RFQ 17A 260427-275 (posted May 18, 2026, due June 1, 2026) established a Master Agreement for bridge joint seals with 76 line items evaluated at 100 linear feet per product and supporting materials at 1 unit each. The initial contract period runs from June 15, 2026 through June 30, 2027 with four optional one-year extensions through 2031; quotations must be FOB Destination with pricing firm for a minimum of one year, and the State will make one award to the lowest qualified bidder meeting all specifications. Municipal subdivisions and school districts in Maine may access the resulting contract at negotiated State pricing if the bidder consents. No other state or local jurisdictions appear in recent solicitations under this code.