Insulfoam Geofoam Applications

InsulFoam® GF (EPS Geofoam) is a lightweight, geo-synthetic fill material that can be used as an alternative to other fill materials, as a soil stabilizer, and in various engineered applications.

Product Description

Insulfoam® GF Geofoam is a high-performance lightweight fill material made from closed-cell expanded polystyrene (EPS). Engineered to meet ASTM D6817 standards, these lightweight blocks are used for infrastructure applications—such as roadways, bridge abutments, retaining walls, and engineered fill—where traditional soil fill would require costly surcharge, compaction, or settlement control.

Key Benefits

  • Lightweight: Reduces need for surcharge, preloading, or heavy compaction.
  • Weather & Moisture Resistance: Withstands freeze-thaw, road salts, moisture, mold, and insect exposure.
  • No Settlement: EPS blocks remain stable over time, minimizing structural inconsistencies.
  • Custom Build: Available in tailored densities and block sizes to fit project specs.
  • Eco-Friendly: 100 % recyclable and free from HCFCs or formaldehyde.
  • Easy Installation: Lightweight, can be cut on-site with simple tools—no heavy machinery required.

Best For

  • Lightweight engineered fill
  • Road and ramp construction
  • Retaining wall backfill
  • Bridge abutments
  • Subsurface void fill
  • Customized structural EPS applications

Product Properties

Property Specification
Material Closed‑cell Expanded Polystyrene (EPS)
Standards ASTM D6817 (geofoam specification)
Custom Options Multiple densities; a range of block sizes
Recyclability 100 % recyclable; no HCFCs or formaldehyde
Durability Insect and mold resistant; withstands freeze‑thaw and road salts
Installation Lightweight; cuttable via hot-wire or saw; no heavy equipment