| PHYSICAL PROPERTIES | VALUE | TEST METHOD |
| Compression stress at 40% Kpa | 90± 20 | BS 4443 Part 1M ethod 5B |
| Compression set (150°C for 70 hours,recovery period 48 hours,25% compression) | 6% | BS 4443 Part 1M ethod 6A |
| Density (kg per cubic metre) | Circa 400,closed cell | |
RESULTS FOR RESISTANCE TO HEAT AGEING (AFTER 168 HOURS AT 150°C)
| PHYSICAL PROPERTIES | VALUE | TEST METHOD |
| Compression stress at 40% Kpa | 90± 20 | BS 4443 Part 1M ethod 5B |
| Compression set (150°C for 70 hours,recovery period 48 hours,25% compression) | 5% | BS 4443 Part 1M ethod 6A |
