Soil Stabilization

Call: 1-800-321-7212

Prime Flex 910 hydrophobic polyurethane resin

Prime Flex 910 is a hydrophobic single-component polyurethane resin with a super low viscosity (35-50 cps) that reacts with moisture when injected into soil forming a rock hard, water-tight mass. 910 is used to stabilize loose soil or sand (permeation grouting), stop underground water flows and seal leaking seawalls. It requires the use of Prime Kat or Kick Fast catalyst.


Recommended Uses

  • Stabilizing loose sand and soil
  • Permeation grouting
  • Compaction grouting
  • Tie back anchors


Typical Areas of Use

  • Seawalls
  • Highways, roads and bridges
  • Airport runways and taxiways
  • Earthen dams
  • Excavation pits and tunneling launch pits
  • Retaining walls
  • Sink holes


  • Encapsulates and strengthens loose soil
  • Super low viscosity for good penetration
  • Watertight
  • Controllable set time
  • Pumped as a single component
  • Meets Florida DOT specifications for chemical grout injection of soil

Completed Projects

• Inter-County Connector – Montgomery/Prince Georges County, MD
• Naval Academy – Annapolis, MD
• Ohio Department of Transportation – Columbus, OH

Cured Characteristics

When cured, Prime Flex 910 exhibits a tensile strength (ASTM D3574) of 23 p.s.i., tensile elongation (ASTM D3574) of 3%, zero shrinkage and a compressive strength (with fine sand) (ASTM D695) of 745 p.s.i.


  • 5 gallon pails
  • 50 gallon drums
  • 300 gallon totes


Made in the U.S.A.