Semi-conductive cushion water blocking tape is mainly used between the insulation shielding layer and the aluminum corrugated tube armor layer of high-voltage cables. It acts as an electrical connection. Which helps to reduce the enrichment of the insulation surface charge, thereby reducing the possibility of partial discharge. At the same time, it can also fill the aluminum corrugated tube. Which effectively prevent moisture from entering the aluminum corrugated tube sheath. And reduce the risk of failure of high-voltage cables due to water trees, etc.

Semi-conductive  cushion water blocking tape consists of two layers of non-woven tapes with a layer of swelling water-blocking powder sandwiched between them. Among them, the non-woven tape provides good mechanical strength and support. While the swelling water-blocking powder can expand rapidly when it encounters water to form an effective water-blocking barrier. In addition, the semi-conductive buffer water-blocking tape may also contain semi-conductive polyester fiber non-woven fabric, semi-conductive fluffy cotton, semi-conductive adhesive. And high-speed swelling water-absorbing agent resin to enhance its semi-conductive performance and water-blocking effect.

Semi-conductive cushion water blocking tape has excellent water-blocking performance, can effectively prevent moisture from penetrating into the cable, and protect the cable from moisture erosion. Semi-conductive buffer water-blocking tape has high mechanical strength and can withstand certain external forces and pressures to ensure the stable operation of the cable in complex environments.

Product Application

• Semi-conductive water blocking tape plays the role of electrical connection between the insulating shielding layer and the aluminum corrugated tube armor layer of the high-voltage cable;
• In communication cables, semi-conductive buffer water-blocking tape also plays the role of water blocking, buffering and shielding to ensure the stable transmission of communication signals;
• In the maintenance process of electronic components. Semi-conductive cushion water blocking tape can be used to cover and protect the circuit to prevent water and moisture from damaging the circuit;
• In industrial fields such as machinery and equipment manufacturing, shipbuilding and automobile maintenance. Semi-conductive cushion water blocking tape can be used to fix electrical accessories, control electromagnetic interference and limit static electricity;
• In some occasions that require waterproofing, moisture-proofing and electrical isolation. Such as underground pipelines, tunnels, bridges and other infrastructure construction, semi-conductive buffer water-blocking tape also plays an important role;

Product Feature

1.Water blocking performance

Semi-conductive cushion water blocking tape has excellent water blocking performance, which can effectively prevent moisture from penetrating into the cable and protect the cable from moisture erosion.

2.Semi-conductive performance

It can separate electrical signals to avoid equipment failure caused by electrical signal interference. At the same time, it can also reduce the enrichment of charges on the insulation surface and improve the electrical performance of the cable.

3.Mechanical strength

Semi-conductive buffer water blocking tape has high mechanical strength and can withstand certain external forces and pressures to ensure the stable operation of the cable in complex environments.

4.Aging resistance

The specially treated semi-conductive buffer water blocking tape has good aging resistance and can maintain stable performance in harsh environments such as long-term high temperature and humidity.

Specification