0.2mm 0.3mm Water Blocking Tape Swelling Tape To Protect Cables
0.2mm 0.3mm Water Blocking Tape Swelling Tape to protect cables
Jiangxi Longtai is a leading manufacturer and supplier of water blocking tapes to the cable industry for use in both power and communication cables.
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Product Description
Water blocking tape or Swelling Tape is a modern high-tech water-blocking material with the function of water-absorbing and expansion, which is composed of polyester fiber non-woven fabric and high-speed swelling water-absorbent resin. The excellent water-blocking performance of the water blocking tape mainly comes from the strong water-absorbing performance of the high-speed expansion water-absorbent resin that is evenly distributed inside the product. The polyester fiber non-woven fabric to which the high-speed expansion water-absorbent resin adheres ensures that the water blocking tape has sufficient tensile strength and good longitudinal elongation. At the same time, the good permeability of polyester fiber non-woven fabric makes the water blocking tape expand immediately when exposed to water, and the water-blocking performance is effectively guaranteed for our Swelling Tape.
Application
Mainly used to coat the core of communication optical cable, communication cable and power cable to play the role of binding and water-blocking Swelling Tape.
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 |
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| 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 |
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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.
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