Product Description

Rock Grout 9200 is a low viscosity, high-strength, fast-reacting polyurethane injection resin that forms a dense, hard fill material required for anchoring and binding aggregate rock. This high-density polyurethane resin is used for soil stabilization, including geotechnical applications. It is not recommended for extremely wet, saturated situations. (See Cured Characteristics below.)

Recommended Uses

  • Stabilizing soils, including sandy soils
  • Consolidating rock
  • Permeation grouting of high-aggregate substrates, including sandy soils.

Typical Areas of Use

  • Highways, roads and bridges
  • Mines
  • Tunnels
  • Earthen dams
  • Excavation pits
  • Seawalls
  • Foundations


  • Low viscosity for good penetration
  • Encapsulates, strengthens and stabilizes rock formations
  • Watertight
  • Quick set time

Cured Characteristics

When cured, Rock Grout 9200 has a compressive strength of (ASTM D-1621) 10,000 p.s.i., a density (ASTM D-1622) of 75 pounds per cubic foot, a tensile strength (ASTM D-1623) of 4,800 p.s.i. and elongation of 3% or less. This resin will react with water.  Reacting grout that comes into contact with water will result in a structurally weakened foamed product. This foaming will persist until all excess water has reacted. Subsequent injections may then be able to cure out to the proper compressive strength. For this reason, it is not recommended for high moisture content and/or saturated soils.


100 gallon units
600 gallon units


Made in the U.S.A.

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