核心优势
With nano-reinforcement technology and topological crosslinking, MK-K50/70 high tear strength silicone rubber 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.
抗损伤能力
- 抗撕裂强度：55-65 千牛/米（达到行业标准的5倍）
- 抗刮擦性：4H铅笔硬度（ASTM D3363）
- 抗膨胀性：<5% @燃料浸泡×72小时（ASTM D471）
动态耐久性
| 属性 | 测试条件 | 表现 |
|---|---|---|
| 拉伸强度 | 常温 | >12.0MPa (ISO 37) |
| 断裂伸长率 | 是否撕裂 | 600-800% |
| 压缩永久变形 | 150℃×70小时 @30%应变 | <18% (ASTM D395) |
应用领域
液压缸密封件 / 矿用钻机防爆环 / 重型燃油系统密封件