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Master Bond adhesives
NOVA Chemicals Expandable Polystyrene (EPS) M77AG Expandable Polystyrene Resin
Categories: Polymer; Thermoplastic; Polystyrene (PS); Expanded Polystyrene (EPS)

Material Notes:

High Density Geofoam/Construction Materials; Low Pentane Modified Grade


  • Ultra-Low Pentane
  • Reduced Prepuff Age Times
  • Fast Molding Cycles
  • Controlled/Uniform Expansion for High Density Applications


  • Geofoam
  • Insulated Concrete Forms (ICF)
  • High Density Sheathing
  • Below Grade Insulation vs. XPS
  • Types XIV and XV

The thermal conductivity of expanded polystyrene at an average temperature of 75°F (24°C) is lowest at 3.5 pounds per cubic foot (pcf). It rises slightly at lower density until about 1.5 pcf where it increases rapidly. The rate of increase is much less at higher densities:

  • 8.0 pcf (128 g/l) -- 0.269 Btu-in/(hr-ft2-°F) or 38.7 mW/(m-K)
  • 12 pcf (192 g/l) -- 0.276 Btu-in/(hr-ft2-°F) or 39.8 mW/(m-K)

NOVA Chemicals EPS resins are biologically and chemically inert. NOVA Chemicals EPS resins are do not contain CFC's (Chlorofluorocarbons).

Information provided by NOVA Chemicals®

Available Properties
  • Bulk Density
  • Density, Batch Pre-Expander
  • Density, Single Pass Continuous
  • Density, Continuous Pre-Expander
  • Filler Content, Pentane
  • Filler Content, Targeted Pentane Content
  • Particle Size, Diameter
  • CTE, linear
  • Maximum Service Temperature, Air
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