In communication base stations and cable TV equipment, waterproofing connectors has always been a vexing problem. Traditional waterproofing solutions often struggle with densely packed connectors in small spaces, and even the slightest mistake can lead to equipment failure. Is there a solution? Volsun cold shrink tubing with mastic inside offers the answer. Its innovative design of "built-in mastic + cold shrink tubing" creates a sealed, protective barrier for various connection types, making it an efficient and reliable waterproofing solution.
This built-in mastic cold shrink tubing is made of high-quality silicone rubber with a special mastic structure added to both ends. The mastic does not solidify and is easy to shape. Combined with the permanent radial pressure of the tubing, it adheres tightly to the cable, leaving no gaps and providing excellent long-term moisture and waterproofing. Notably, its expansion ratio is approximately 4x, allowing a single product to cover connectors of various diameters, significantly reducing inventory and inventory costs.
Despite the complex and ever-changing outdoor environment, this built-in mastic cold shrink tubing performs remarkably well. It withstands sunlight, UV rays, and salt spray corrosion, and will not age even after long-term use. The adhesive prevents overflow and features a buffer zone, resulting in a service life far exceeding that of ordinary waterproof tubing, reducing base station maintenance frequency.
Installation is also extremely simple, requiring no heating or special tools. Simply clean the connection joints, apply the cold shrink tubing, install the connector, confirm the protective position, and pulling out the plastic supporting core. A tight seal is achieved in just one minute, making it ideal for small spaces and densely populated joints, significantly improving construction efficiency.
In terms of performance, the built-in mastic cold shrink tubing has been third-party tested and verified to meet ASTM standards. For example, its tear strength is ≥35.0 kN/m, providing strong tear resistance to prevent breakage during installation or use; its breakdown strength is ≥20 kV/mm, providing high insulation compatibility with communication cable connectors to prevent short circuits; and its volume resistivity is ≥1×10¹⁵Ω·cm, offering excellent insulation performance with no degradation over time, making it suitable for high-voltage environments.
Currently, built-in mastic cold shrink tubing is widely used in communication base stations, cable television, and cable connections, providing precise sealing and ensuring stable equipment operation. Available in sizes ranging from 28mm inner diameter to 45mm inner diameter. Fully recovery lengths can be cut to meet specific needs, and gray, black, and other colors are available for customization.
Volsun built-in mastic structure cold shrink tubing provides "zero leakage" protection at every joint, ensuring stable operation of communication equipment!
- CONTACT TEL: +86-512-66386808
- SALES CONTACT: volsun2006@szvolsun.com