To be your specialist in Insulation, Sealing& Protection solutions

Our main products including cold shrink tubing, heat shrink tubing, PTFE tubing, PVDF heat shrink tubing, high temperature heat shrink tube, identification sleeve, permanent cable maker, wire etc.


Braided Fiberglass Sleeve

Heat Shrink Tube

Cold Shrink Tubing


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Cold Shrink Coax Connector Sealing Kits VL-KC Series
  VOSLUN VL-KC series provide the correct Cold Shrink tube for the correct Cold Shrink tube and special foam to make the installation of coax connector seals easy. The installation does not require tooling, and the quality of the installation is less installer dependent.
*         Excellent weather resistance, ultraviolet aging resistance and higher embrittlement resistance than heat shrink tubing
*         More resistant to slab and prick, abrasion, acid and alkali than silicone cold shrink tubing
*         Simultaneously expands and shrinks with work pieces without clearances, seals tight in harsh environment
*         Stably sealing the work pieces in windy environment
*         Well suited for cable less than 1KV
*         Seals tight, retains its resiliency and pressure even after prolonged years of ageing and exposure.
*        Simple , safe installation, requires no tools or special training. No torches or heat work required.
*         Sealing class IP67
  The main application is the sealing of coax connectors used in the wireless communication antenna market. These mainly outside installed connectors require an extra sealing. Up until now, sealing tapes or Heat Shrink tubes were used.
Technical Information
   The outer Cold Shrink tube is made from UV resistant EPDM or Silicone rubber material to provide an excellent seal on the connector. In cases where the different coax cable diameter can not be covered with the tube application range, a special foam is used to increase the smallest cable diameter to fit the shrink performance of the Cold Shrink tube. The kits passed the .5 bares water pressure sealing test and met IEC 529 IP 67.
Technical Date


Typical Data

Test method


49 A

ASTM D 2240

Tensile Strength

11.8 MPa

ASTM D 2671

Elongation at break


ASTM D 2671

Tear Strength

38.6 N/ mm

ASTM D 624

Dielectric Strength

19.1 kV/mm


Dielectric Constants


90℃(in water) 7 days1940F5.6

Product Line Application

3M Spec.

Volsun Spec.

Cables to Connect



½” termination

or ½”   to ½” splice



½” to 7/8” splice

5/8” to   7/8” splice



½” to 1 1/4” or 1 5/8” splice

5/8” to   1 1/4” or 1 5/8” splice

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