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Geotechnical polyurethane foam

Dual Component Systems

Dual Component Polyurethane Systems by NCFI, formerly known as TerraThane, are uniquely formulated for a variety of geotechnical applications that require excellent lifting capacity, strong adhesion, or structural support.

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How it WorksApplicationsDocumentsBenefitsPhysical PropertiesCase Studies

How the Dual-Component System Works

Dual-component polyurethane systems are designed to create a strong, stable foundation for soils and structures. When the two liquid components are combined, they react and expand into a rigid polyurethane that bonds with the surrounding soils. Different formulations within this system have unique reaction profiles and expansion characteristics, allowing professionals to match the right material to the needs of each project. The final density of the polyurethane depends on the level of confinement—loose soils allow more expansion, while tighter soils produce a denser, stronger result. This versatility makes dual-component systems effective for applications ranging from slab support and void filling to soil stabilization in challenging environments.

Applications

NCFI's Dual-component polyurethane systems have been applied to a wide variety of geotechnical applications in various industries and markets. Depending on your needs, NCFI's dual-component systems are designed to perform differently for varied applications. Some are fast for pinpoint lifting control, while some are slower to offer better spread or to be injected deeper. Many of these systems are hydro-insensitive/hydrophobic to perform well in wet environments. Below are just a few of the typical applications these systems were designed for.

  • Concrete Joint Matching
  • Interior and Exterior Concrete Lifting
  • Void and Cavity Filling
  • Trip Hazard Repair
  • Culvert Repair
  • Manhole Rehabilitation
  • Pool Decks and Porches
  • Soil Stabilization and Densification
See All Geotechnical Applications
See Concrete Leveling Applications

Find Dual-Component Technical Documents

Technical Data Sheets

  • Dual Component Systems 24-003 TDS
  • Dual Component Systems 24-010 TDS
  • Dual Component Systems 24-011 TDS
  • Dual Component Systems 24-035 TDS
  • Dual Component Systems 24-042 TDS
  • Dual Component Systems 24-044 TDS
  • Dual Component Systems 24-060 TDS
  • Dual Component Systems 24-6R TDS

Benefits of NCFI's Dual-Component Systems

Environmentally Inert

Our dual-component systems are inert products; once installed they will not leach any chemicals into the soil or groundwater. Most of the systems are available upon request as NSF-61 Certified material.

Chemical Resistance

NCFI's dual-component products have excellent resistance to solvents, mold, and mildew, ensuring its structural integrity stays intact.

Hydrophobic/Hydro-Insensitive

Many of the systems are Hydrophobic or Hydro-insensitive. This means that during installation, they will push water out of the way and not get diluted or affected by the presence of water.

Minimal Disruptions

Fast cure times, a small equipment footprint, and in most cases, an alternative to excavation, means minimal disruptions for your project.

Physical Properties of NCFI's Dual-Component Systems

Dual Component Systems Product #

Density (ASTM D1622)

Compressive Strength @ 10% (ASTM D1621)

Compressive Modulus @Max (ASTM D1621)

Shear Strength (ASTM C273)

Dual Component Systems 24-003

4.0 pcf

80 psi

1,900 psi

52 psi

Dual Component Systems 24-010

2.8 pcf

27 psi

695 psi

38 psi

Dual Component Systems 24-011

5.0 pcf

112 psi

2,200 psi

72 psi

Dual Component Systems 24-042

3.5 pcf

60 psi

1,600 psi

62 psi

Dual Component Systems 24-044

3.0 pcf

41 psi

1,155 psi

90 psi

Dual Component Systems 24-6R

6.0 pcf

121 psi

3,391 psi

135 psi

*The above values are average values obtained from laboratory experiments and should serve only as guide lines.

NCFI is a Proud Member of the Following Associations

American Society of Civil Engineers

Center for Polyurethanes Industry

Grain Elevator and Processing Society

International Concrete Repair Institute

National Concrete Masonry Association

National Foundation Repair Association

About Us

NCFI has been a global leader in polyurethane foam production since 1964. Seeing the ever-growing applications of polyurethane in the geotechnical stabilization market, NCFI opened the geotechnical division in 2008 in order to provide better service and products to our customers and contractors. Our foam systems are an adaptable, no-excavation solution for meeting geotechnical engineering challenges.

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