| Model | NO/NO501 |
| Material | (NOMEX) |
| Surface gravity | 500 g/m2 |
| Density | 0.24 g/cm3 |
| Thickness | 2.10 mm |
| Aperture | 81 % |
| Fibre composition | Fiber -- (NOMEX) |
| Substrates -- (NOMEX) | |
| Air permeability | 150 l/dm2·min@ 200 Pa |
| Breaking Strength | lengthways 800 N / 5cm -- <30% |
| crosswise 1000 N / 5cm -- <65% | |
| Thermal stability | Shrinkage200 ℃ – 2h)< 1% |
| The max operating temperature | Continuous/Instantaneous 220 ℃ / 260 ℃ |
| Wet rate of return | 5 % |
| Inoxidizability | Good |
| Acid-fast | generally |
| Anti-alkaline | Good |
