Jiangxi Longtai New Material Co., Ltd
leading supplier of wire & cable materials whatsapp:Ms. ariel 008613580878248 ; Ms.cara 008613902614364
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Jiangxi Longtai is a leading manufacturer and supplier of water blocking tapes to the cable industry for use in both power and communication cables.
Product Description
Water blocking tapes and water swellable tapes prevent the progression of water deep into many types of critical cable designs.
It can rapidly absorb liquid at the point of insulation failure and quickly swell to block any further ingress. This ensures any cable damage is minimised, fully contained and is easy to locate and repair.
Application
Mainly used throughout the cable industry in the energy, telecommunications, data transmission and sub-sea cable market sectors.
Technical Information
Water blocking tapes and water swellable tapes from Scapa come in different materials, widths, lengths and thicknesses.
• Standard inner core diameters for water blocking tapes are 76mm, 102mm and 152mm. Various widths are available and the outer diameters are as follows:
Tape Width Outside diameter
< than 1 inch / 25mm = 12 inches / 304mm max.
> than 1 inch / 25mm = 38 inches / 965mm max.
• Joints of a suitable technical standard may be included but will be kept to a minimum. Heat seal joints are standard on water blocking tapes, which are thinner than conventional joints and as strong as the tape itself. Other joints (butt‐double or single) are available upon request
Technical Parameters
| Item | Technical Parameters | |||||||
| Single-sided water blocking tape | Double-sided water blocking tape | |||||||
| Nominal Thickness (mm) | 0.2 | 0.25 | 0.3 | 0.2 | 0.25 | 0.3 | 0.4 | 0.5 |
| Tensile strength (N/cm) | ≥25 | ≥30 | ≥30 | ≥25 | ≥30 | ≥30 | ≥35 | ≥40 |
| Breaking elongation (%) | ≥10 | ≥10 | ≥10 | ≥10 | ≥10 | ≥10 | ≥10 | ≥10 |
| Expansion speed (mm/min) | ≥8 | ≥8 | ≥10 | ≥6 | ≥8 | ≥10 | ≥12 | ≥12 |
| Expansion height (mm/5min) | ≥10 | ≥10 | ≥12 | ≥8 | ≥10 | ≥12 | ≥14 | ≥14 |
| Water ratio (%) | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 |
| Thermal stability a) Long-term temperature resistance (90℃,24h) b) Instantaneous high temperature (230℃,20s) Expansion height(mm) | ≥Initial value ≥Initial value | |||||||
| Note: More specifications, please contact our sales staff | ||||||||
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Why Choose Longtai
Jiangxi Longtai is a global manufacturer and supplier of water blocking tapes and other cable & wire materials, cooperated with Prysmian, Nexans etc leading companies, with 4 factories, in vast experience and product expertise in this area. Longtai understands its markets, utilises quality standards and excels at product development.
Contact us for more details!
Ella Wong~