NIGP 28513: Compound, Explosion Proof Sealing

NIGP 28513 Compound, Explosion Proof Sealing is an Item code covering specialized sealing materials and compounds used in hazardous or classified environments where conventional sealants cannot be used. State and local governments procure this product primarily as part of capital projects involving facility upgrades, electrical infrastructure repairs, and compliance with building codes for structures in sensitive or regulated zones. The issuing bodies under this code span city engineering departments, school districts, and community college systems; these entities typically bundle compound, explosion proof sealing into larger construction or maintenance RFPs and IFBs alongside roof replacement, electrical equipment, drainage, and law enforcement facility work.

Recent activity under this code appears limited in the provided dataset. The most visible recent opportunity is the San Jacinto Community College District's CSP #26-11 for roof drain repairs and rerouting at Building S12 in Houston, Texas, with a project estimate of approximately five hundred thousand dollars and a proposal deadline of April 13, 2026. Additional solicitations from the City of Madison Engineering (Normal Hall Roof Replacement, RFB due August 6, 2026) and Northside Independent School District (electrical equipment, parts, supplies, and services, IFB due July 1, 2026) represent broader construction and maintenance work that may incorporate specialized sealing compounds. Geographic activity is concentrated in Texas and Wisconsin based on recent postings, with Sourcewell's cooperative procurement framework indicating broader national reach through participating entities across Washington state and beyond. The code does not show sustained, high-volume individual solicitations; most activity appears bundled into larger facility-maintenance or construction contracts rather than standalone compound-sealing procurements.