Water-blocking Materials
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Non-conductive Film Laminated WBT Water Blocking Tape For Cables
The water- blocking tape is a compound of polyester fiber non-woven and highly water- absorbing material with a water-swelling function. Water blocking tapes and water swellable tapes 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. The water-blocking tape is used in power cables and communication optical cables to reduce water and humidity penetration in optical and electric cables so as to increase the service life of optical and electric cables.
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Dipped coated water blocking aramid yarn for cable
The water- blocking yarn is easy to use, its process is simplified and its structure is stable. It blocks water reliably in clean environment without producing any oily contamination. It is mainly applicable to cable core wrapping of waterproof telecommunication cable, dry-type optical cable and cross linked polyethylene insulation power cable. Especially for submarine cables, the water- blocking yarn is the most ideal choice.