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Geotechnical Foam

From stabilizing critical pipelines to lifting sunken concrete slabs, FSI’s geotechnical polyurethane foams deliver proven strength, long-term durability, and efficient installation.

Whether your project involves large-scale infrastructure or residential repair, our solutions are engineered to keep it secure, stable, and built to last. 

FoamJack™ – Fast, Permanent Concrete Leveling

Lift and level concrete quickly without excavation. Ideal for foundations, driveways, sidewalks, patios, and more.

  • Small injection holes
  • Lightweight and easy to use
  • Expands to fill voids and stabilize soil
  • Cures in minutes

Safe, durable, and proven since 1988.

Learn More About FoamJack™
FoamJack® expanding rigid polyurethane foam is a fast, permanent solution for lifting, leveling, and stabilizing concrete without excavation or slab replacement. Its injection process fills voids beneath the concrete and gently lifts slabs to their original level, curing in minutes for a stable foundation.
Trenchbreak logo - polyurethane pipeline resource

Trench Break™ – Pipeline & Infrastructure Support 

Designed for demanding geotechnical applications, Trench Break™ closed-cell rigid polyurethane foam provides rapid, reliable support in challenging environments. 

Common applications include: 

  • Pipeline pads, pillows, and rapid supports 
  • Void filling for sinkholes and mine shafts 
  • Soil compaction and reinforcement 
  • Foundation stabilization and lifting 
  • Bridge approach repair 
  • Runway maintenance 

Trench Break™ is lightweight, easy to install, and built to withstand the toughest site conditions, helping contractors save time and minimize risk while maintaining long-term performance. 

Learn More About Trench Break™