UNSPSC 13101707: Isobutylene isoprene IIR/XIIR

UNSPSC 13101707 Isobutylene isoprene IIR/XIIR, a Commodity code, encompasses synthetic rubber compounds and elastomeric sealant materials that state and local governments procure for pavement maintenance and crack sealing in road and parking infrastructure. Recent state and local solicitations under this code reflect active procurement of crack sealant products—specifically polyurethane and silicone joint sealers meeting DOT specifications—for asphaltic concrete pavement repair and bridge joint sealing applications. The City of San Antonio Finance Department issued IFB 6100019897 in October 2026 for PolyFlex Type 3 crack sealant meeting Texas DOT Standard Specifications and ASTM standards, with delivery required to the Southeast Service Center and a three-year contract term plus two optional one-year renewals. The Texas Department of Transportation Lubbock District issued IFB 601340000066820 in August 2026 for 288 kits of silicone joint sealant (Sikasil 728 RCS or TxDOT-approved equivalents) and 72 heavy-duty caulking guns. Issuing bodies soliciting under the code include state DOT departments, municipalities, and county governments, with recent activity concentrated in Texas and extending to California and Maine. Work is typically structured as competitively bid IFB or ITB procurements for fixed quantities of pre-packaged sealant material delivered FOB destination under firm, fixed-price contracts with delivery restricted to business hours and specific locations.

Geographic activity spans multiple states with Texas showing the heaviest recent concentration—the City of San Antonio, Texas DOT Lubbock District, Collin County, and Harris County Department of Education all posted pavement-maintenance solicitations in the June through October 2026 window. California procurement activity appears in Santa Clara County's broader pavement installation and repair contracts, and Maine's Department of Transportation issued an RFQ in July 2026 for deck sealant systems and epoxy polymer concrete products. Representative opportunities include the Texas DOT Lubbock District's August 2026 IFB for joint sealer kits due August 14, 2026, requiring Sikasil 728 RCS silicone sealant or TxDOT-approved equals with strict compliance to material specifications, and San Antonio's October 2026 IFB 6100019897 for Type 3 crack sealant with bids due October 16, 2026, calling for approximately 2,100 pounds per pallet delivery to a single service center location. Contract terms typically run one to three years with optional renewals, and pricing structures incorporate Producer Price Index adjustment clauses subject to caps and city approval. Bid security requirements are standard at 10 percent of bid price, and no DBE or set-aside designations appear in the recent opportunities reviewed.