Volsun Built-in Mastic Cold Shrink Tube- A Leader of Waterproof Sealing Field

In the fields of communication base stations, cable TV, and power cable connections, the quality of waterproof sealing and insulation performance is directly related to the stable operation of the equipment. Poor sealing can lead to moisture and dust intrusion, resulting in serious problems such as signal transmission obstruction and line short circuit. Traditional sealing solutions often cause water seepage and leakage due to material aging and structural failure, causing up to 37% of operation and maintenance failures (industry survey data). The built-in mastic cold shrink tube series developed by Volsun has become a leader with its excellent performance and reliable waterproof sealing effect.

1. Super strong sealing performance

The built-in mastic cold shrink tube adds mastic structure at both ends or one end, and with permanent radial pressure, it can fit tightly with the cable to form a waterproof barrier that does not leak. The mastic is soft and does not solidify, ensures extremely high sealing reliability. Even in harsh environments, it can effectively block the intrusion of water vapor, dust and impurities to ensure the safety of internal lines.

2. Widely adaptable and highly compatible

This cold shrink tube has an expansion ratio 4:1, is suitable for a wide range of diameters, which can meet the sealing requirements of cables of various specifications. Whether it is a slender communication cable or a thick power cable, the cold shrink tube can be easily adapted. Widely used in the insulation and sealing protection of coaxial cables in communication base stations, cable TV connectors, wire and cable connections, and other connectors.

3. Excellent performance

The mastic cold shrink tube has excellent weather resistance, can resist exposure, ozone aging, ultraviolet erosion and salt spray corrosion, and has excellent tear resistance. Even if used outdoors for a long time, it can maintain stable performance, is not easy to age and damage, and has a long service life.

4. Excellent technical indicators

The Shore hardness is 40±5 A, so it's soft and easy to install. The tensile strength is ≥ 9.0MPa, the elongation at break is ≥800%, and the tear strength is ≥35kN/m. These data show that it has excellent mechanical properties and can withstand various external impacts.

And the breakdown strength is ≥20kV/mm, the volume resistivity is ≥1×10¹⁵Ω・cm, the excellent insulation performance effectively prevents leakage and ensures the safety of equipment and personnel.

5. Easy installation

The installation process of the mastic cold shrink tube is extremely simple and can be completed in three steps: Clean the connection, put the cold shrink tube on the appropriate protective part, and remove the supporting core, installation finished.

Volsun built-in mastic cold shrink tube, with its advantages of super strong sealing, high adaptability, durable corrosion resistance, excellent performance and easy installation, has become an ideal choice for waterproof sealing and insulation protection in the communication and power fields.