Hj3 Composite Technologies, LLC
At a glance
EmployeesNot reported
In business sinceNot reported
Industry
HeadquartersTucson, AZ
SAM.gov UEIK84LKLE1K5L5
HJ3 manufactures carbon fiber composite repair systems for tanks, pipes, silos, and concrete structures. The company produces named products including CarbonSeal for pipe and vessel repair, TankWrap for tank repair, SiloWrap for concrete silo repair, StrongHold for concrete repair, and ShapeShift, GlassSeal, ChemSeal, and FireSeal systems. The systems are designed to address corrosion, erosion, dents, weld defects, and metal loss in pipeline and infrastructure applications, and the company states its products are code-compliant.
Summarized from the company’s own website
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Hj3 Composite Technologies, LLC | Tucson | AZ | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


