Various thermal insulation boards (polystyrene variants)

Prolite Thermo Board - EPS (Expanded Polystyrene)

High density fire resistant boards; EPS 32kg/m³ and 40kg/m²; type X with ABS facings.

Available from 25mm thickness and upwards in widths of 1200m as standard. Standard lengths are 600, 1200, 2400, 3600 and 4800mm. Non standard widths and lengths can be manufactured. Suspended ceilings are 1200x600mm standard.


  • Excellent thermal insulant - EPS is 98% air
  • Proven acoustic insulant - EPS absorbs both impact sound in floating floors and airborne sound for walls
  • Moisture resistant - EPS resists degradation by water
  • Lifetime durability - EPS does not decompose
  • Flexible mechanical properties of EPS can be adjusted to suit every specified application
  • Versatile - EPS can be manufactured to almost any shape or size and is compatible with a wise variety of materials
  • Easy to transport as EPS is as light as air
  • Extremely SAFE - EPS is non-toxic and totally inert; unlike gas extruded polystyrene (XPS) it contains no Chloroflourocarbons (CFC) or Hydrofluorocarbons (HCFC)
  • Recyclable - EPS can be recycled in many ways, including recycling directly into new buildings products and incineration to recover its inherent energy content

Technical Data:

EPS Grades
Property Conditions Unit 32D 24D 16D
  Vapour transmission 38°C. 88% rh ngm/Ns Max. 4.2 4.2 5.0
  Vapour resistivity - MNs/gm Min. 238 238 200
  Thermal Conductivity (k) Value 10°C mean W/mk Max. 0.033 0.033 0.034
  Dimensional Stability 7 days at 80°C % Max. 1.0 1.0 1.0
  Effect of High Temperature Operating temp. °C Max. 80 80 80
  Compressive stress at 10% compression kPa Min. 190 150 110
  Cross breaking strength kPa Min. 275 205 170
  Safe working load at 1% compression kPa 100 70 45

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