Key Advantages
With nano-reinforcement technology and topological crosslinking, MK-K50/70 achieves breakthrough tear strength ≥55kN/m (ASTM D624) coupled with >600% elongation and scratch-resistant surface (Pencil Hardness ≥4H). Very hard to tear, scratch and scuff resistant, high strength, high elongation, tensile and swelling resistant, the ultimate sealing solution for extreme mechanical stress environments.
Damage Resistance
- Tear Resistance: 55-65 kN/m (5× industry standard)
- Scratch Resistance: 4H Pencil Hardness (ASTM D3363)
- Swelling Resistance: <5% @fuel immersion×72h (ASTM D471)
Dynamic Durability
| Property | Test Condition | Performance |
|---|---|---|
| Tensile Strength | Ambient | >12.0MPa (ISO 37) |
| Elongation | At break | 600-800% |
| Compression Set | 150℃×70h @30% strain | <18% (ASTM D395) |
Applications
Hydraulic cylinder seals / Explosion-proof rings for mining drills / Heavy-duty fuel system seals