TerraFill Ground Enhancing Backfill

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Features & Benefits

  • Easily applied
  • Produces lower stable grounding impedance, and lower surge impedance resulting in faster transient dissipation
  • Excellent shelf life with long-term performance
  • Manufactured to be compatible with copper grounding systems and standard field application methods
  • Can be used in connection with grounding grids to minimize step and touch potentials
  • Produces acceptable grounding impedance in high- resistivity soils, within a reasonably sized area
  • Versatile – Applying TerraFill® to lower the ground resistance of grounding equipment allows for a variety of earthing designs which might otherwise be impractical
  • Self-compacting – comes in easily transportable 50 lb. (22.68 kg) bags, easily installed by one person
  • Complies to MOTOROLA R56 Standard


  • Will not dissolve or decay with time
  • Requires no maintenance
  • Maintains constant resistance for the life of the system

Environmentally Friendly

  • Does not affect soil or ground water
  • Meets all EPA requirements for landfill
  • Material Safety Data Sheet (MSDS) available on request
  • Restriction of Hazardous Substances (RoHS) compliant
  • Motorola R56 compliant

Use TerraFill® Backfill with TerraDyne® Electrolytic Grounding Systems for 30 years of ultra-stable, maintenance free grounding.


  Material Safety Data Sheet Download

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