Shanghai Gengyun Industrial Co., Ltd
The single-sided and double-sided tower laminated non conductive water blocking tape is composed of polyester film, highly water-swellable material and polyester fiber nonwoven fabric. This structure makes the water-blocking tape waterproof on one or both sides. It is used in situations where waterproofing is required on one or both sides. For example, in scenes such as wall waterproofing and roof waterproofing, the single-sided laminated water-blocking tape can effectively prevent moisture from penetrating from one side while maintaining the structural integrity and functionality of the other side.
Or in underground projects such as basements and underground garages, the double-sided non conductive water blocking tape can effectively prevent moisture from penetrating from both sides, ensuring the stability and safety of the underground structure. In addition, the double-sided laminated water-blocking tape is also suitable for some occasions with high requirements for waterproofing, such as bridges, tunnels and other waterproofing projects.
Application
It is mainly used for cable conductor surface and outer layer of insulator. playing a role of insulation and water-blocking. Non conductive water blocking tape can also be used in waterproofing projects such as construction projects and underground projects to isolate materials such as water, air, moisture, and salt.
Specification of Non Conductive Water Blocking Tape
| Properties | Single-side water blocking tape | Double-side water blocking tape | |||||||||
| ZDD15 | ZD020 | ZDD25 | ZD030 | ZDD35 | ZDS20 | ZDS25 | ZDS30 | ZD840 | ZDS50 | ZDS80 | |
| Weight(g/m²) | 65×5 | 75×5 | 85×5 | 100=10 | 110=10 | 80=10 | 90±10 | 100±10 | 120=10 | 150:20220:20 | |
| Thickness(mm) | 0.15 ±0.03 |
0.20 ±0.03 |
0.25 ±0.03 |
0.30 ±0.03 |
0.35 ±0.03 |
0.20 ±0.02 |
0.25 ±0.02 |
0.30 ±0.03 |
0.40 ±0.03 |
0.50 ±0.05 |
0.80 ±0.05 |
| Tensile Strength(N/ cm) | 220 | >25 | >30 | >30 | >30 | >25 | >30 | >30 | >35 | >40 | >50 |
| Elongation(%) | >12 | >12 | >12 | >12 | >12 | >12 | ≥12 | >12 | >12 | ≥12 | ≥12 |
| Moisture Content(%) | <9 | <9 | <9 | <9 | <9 | <9 | <9 | <9 | <9 | <8 | <8 |
| Swelling Speed(mm/ min) | >6 | >6 | >8 | >10 | >10 | >6 | >8 | ≥10 | >12 | ≥10 | ≥12 |
| Swelling Height(mm/3min) | >8 | 28 | ≥10 | ≥12 | ≥12 | >8 | ≥10 | ≥12 | φ14 | ≥12 | >14 |
| Swelling Speed(mm/ min) Nacl 3.3% |
– | – | – | – | – | – | – | – | – | >2 | >3 |
| Swelling Height(mm/3min) Nacl3.3% |
– | – | – | – | – | – | – | – | – | >3 | >4 |
| Long Term Stability(ºC) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Short Torm Stability(ºC) | 230 | 230 | 230 | 230 | 230 | 230 | 230 | 230 | 230 | 230 | 230 |
Note: Thickness 0.15-0.25mm is suitable for communication cables; Thickness 0.3mm and above is suitable for power cables. Seawater water blocking tapes with special properties can be produced according to customer requirements.