XPS 700 — Extreme Loads & Civil Engineering Thermal Insulation
Use XPS 700 where maximum compressive strength is critical, including heavy civil infrastructure, industrial foundations, and high-load road construction projects.
- Compressive strength, kPa:
- 700
- Declared thermal conductivity λD, W/(m·K):
- 0,034–0,035
- Reaction to fire, class:
- E
- Board size (length × width), mm:
- 1250 × 600
- Nominal thickness, mm:
- 20–150
- Surface type:
- Smooth
- Edge type:
- Straight edge (I) / L-shaped edge (L)
A heavy-duty rigid extruded polystyrene board engineered for thermal insulation in structures subject to extreme mechanical loads and demanding civil engineering applications. Available in thicknesses from 20 mm to 150 mm, PNP XPS 700 delivers consistently low thermal conductivity alongside an exceptional compressive strength of ≥ 700 kPa.
Description
PNP XPS 700 is a high-performance thermal insulation material (latest generation XPS) manufactured from general-purpose polystyrene. It features a smooth surface and a homogeneous closed-cell structure, with a declared thermal conductivity (λD) of 0.034 W/m·K for thicknesses of 20–100 mm and 0.035 W/m·K for thicknesses of 120–150 mm. Compressive strength meets CS(10\Y) 700 (≥ 700 kPa), and long-term water absorption by total immersion is rated WL(T) 0.7 (≤ 0.7 Vol.-%). The boards conform to EN 13164:2012+A1:2015 and are REACH-compliant, containing no HBCDD or other substances of very high concern.
Applications
- Thermal insulation of road construction and civil engineering structures
- Heavily loaded floors, ground slabs, and industrial pavements
- Bridge decks and infrastructure elements subject to high traffic loads
- Cold-storage and freezer-room floor insulation
- Foundations and subgrade insulation under extreme load conditions
Advantages
- Exceptionally high compressive strength — CS(10\Y) ≥ 700 kPa, purpose-built for extreme-load structures
- Consistently low thermal conductivity (λD 0.034–0.035 W/m·K)
- Virtually zero water absorption — homogeneous structure of sealed independent cells (WL(T) ≤ 0.7 Vol.-%)
- Absolute biostability and proven long-term durability
- Wide operating temperature range: −70 °C to +75 °C
- REACH-compliant and environmentally responsible — no ozone-depleting blowing agents used in production



