Medium wall heat-shrink tubing Cellpack 3:1 from 40 to 12 mm 127423

Medium wall heat-shrink tubing for professional applications

The SR2 / SRH2 tubes are designed to offer reliable and durable protection in industrial environments and demanding electrical applications. The 3:1 shrink ratio allows coverage of a wide range of diameters, making them ideal for cable joints and terminations subject to mechanical stress, moisture, or critical environmental conditions.

Secure insulation and hermetic sealing with internal adhesive

The version with thermoplastic adhesive stands out for its high sealing capacity against moisture, enhancing the durability of wiring and preventing oxidation or electrical leakage. The adhesive activates during shrinkage, ensuring perfect adherence to the underlying materials.

Durable materials and high performance

Made of cross-linked polyolefin, the tubing is:

• Halogen, lead, and cadmium-free

• Non-corrosive and melt-resistant

• UV stabilized and resistant to chemicals

• Labelable for professional applications and traceability
  
  

The shrink temperature is above 125 degrees, with an operating range from -40 to +120 degrees, ensuring dimensional stability and flexibility even in extreme conditions.

Excellent mechanical and electrical properties

The tubing features:

• Tensile strength: 13 Mpa

• Elongation at break: 350% (250% after thermal aging)

• Dielectric strength: 25 kV/mm

• Volume resistivity: 10¹·cm
  
  

Additionally, it maintains excellent performance even after 168 hours at 150 °C, according to IEC 60684-2 tests.

Fields of application

• Electrical insulation of joints and branches

• Mechanical and chemical protection of cables

• Sealing against moisture in indoor and outdoor installations

• Suitable for industrial installations, electrical panels, automation, automotive wiring