HJ3 Composite Technologies has designed its structural strengthening and repair systems to serve commercial, industrial, residential markets and markets in need of blast protection under its HJ3 Civil, CarbonSeal, StrongHold and BlastSeal product lines. Not only do these lines address the different strengthening needs of different markets, but they also each have a network of authorized installers worldwide that are specifically certified to work with and install the corresponding strengthening and repair systems.

 
HJ3’s Civil line of structural strengthening systems is designed to repair aging and degrading commercial buildings, parking garages, bridges and overpasses. Applications include structural repair, seismic upgrades, change of use, and historical restorations. Learn more…
 
The CarbonSeal™ product line covers a variety of strengthening and repair systems designed to withstand the harsh environments of heavy industry. This includes chemical resistance, temperature resistance and fire resistance. Applications include steel pipes, steel tanks, general concrete repair, underground pipes, underground tanks, manholes and railroad bridges. Learn more…
 
The StrongHold™ line is comprised of strengthening and repair kits for residential basement bowing walls, cracked walls, leaking walls, floor cracks and counter tops or other smooth surfaces. The kits can be installed by homeowners for basic repairs, or by one of our certified network dealers for more complex installations. Learn more…
 
The BlastSeal™ line is designed for industries desiring blast protection. The product line has been tested and approved by the United States Department of Defense as well as the Mine Safety Health Administration (MSHA). Learn more…