S 4000® HT

compression proofed and high insulating

Do you have questions about this material?

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Ranges of application

S 4000® HT is used as thermal insulating board or as mechanical part for heated presses and tools in the plastics-, rubber– and wood processing industry.

Special material characteristics

  • long-term temperature resistance
  • exceptionally good insulation effect combined
       with high compressive strength
  • good resistance against acids and solvents


In comparison to other glass fibre reinforced plastics, S 4000® HT allows, the use of significantly less insulation thicknesses to reach the desired insulation effect. Compared to the Quality S 4000® the S 4000® HT provides a higher temperature and pressure resistance.


Temperature resistance (short-term) 250 °C 482 °F
Temperature resistance (long-term) 230 °C 446 °F
Thermal conductivity 0.13 W/mK 0.08 btu/ft h °F
Coefficient of linear expansion 21·10-6 21·10-6
Compressive strength (room temperature) 450 N/mm2 65267 psi
Flexural strength 200 N/mm2 29007.5 psi
Compressive strength (200°C) 200 N/mm2 29007.5 psi

Do you need further details?

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This finishig process was especially developed for the highest requirements on precision.

FP-BRA Coating

This high-performance coating grants an effective protection against aggressive acting media.




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