Applications
Description
Water Blocking Yarns are used in optical, copper telephone, data cable and power cable as cable components. Yarns are used as fillers in power cables to provide a primary pressure block and to prevent water ingress and migration in fiber optical cables. When water enters into a cable protected by water blocking yarns, the super-absorbent component within the yarn instantly forms a water blocking gel. The yarn will swell approximately three times its dry size.
Characteristics
• Excellent water-blocking effect
• Good thermal conductivity and heat dissipation
• High insulation and chemical stability
| Denier D |
Mass Per Length m/kg |
Tensile N |
Elongation % |
Swelling Speed ml/g/1min |
Swelling Height ml/g |
Moisture Content % |
| 9000 | 1000 | >250 | >10 | >50 | >60 | <9 |
| 4500 | 2000 | >150 | >10 | >45 | >60 | <9 |
| 3000 | 3000 | >100 | >10 | >45 | >50 | <9 |
| 2000 | 4500 | >70 | >10 | >40 | >50 | <9 |
| 1600 | 5000 | >60 | >10 | >35 | >45 | <9 |
| 1500 | 6000 | >50 | >10 | >30 | >40 | <9 |
| 900 | 10000 | >20 | >10 | >20 | >30 | <9 |
Above characteristics can be changed to meet the specific requirements of customers.
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