GNC - Cold Shrink Silicone Rubber Sleeve

-55~+200 Uvproof Rainproof RoHS


High weather resistance Silicone rubber sleeve expanded and assembled onto a spiral type removable plastic supporting core. Remove the supporting core after sleeve positioned to the cable connector that requires insulation seal protection, Silicone rubber sleeve will quick and tightly shrink onto the joints. Allows to quick construction without using open fire and tools as well as a narrow space.
Applied to the sealant protection for cable connectors of communication base station.

Operating Temperature Range

  • Continuous operating temperature: -55℃ ~ 200℃
  • Storage life recommended: 1 Year


Standard color: black, gray


  • Anti-Ultraviolet, resistant to Acid and Alkali
  • Excellent mechanical and electrical property
  • None heating tools requires
  • Substantially reducing operating time
  • Long lifetime product
  • High ratio shrinkage
  • RoHS compliant

Technical Data

Property Test Method Typical Value
Hardness ASTM D2240 Shore A26
Tensile strength ASTM D412 ≥7MPa
Elongation at break ASTM D412 ≥840%
Tear Strength ASTM D412 ≥35kN/m
Ultraviolet Exposing Test ASTM G154 Pass
Salt Spray Testing ASTM B117 Pass

Diameter retraction shrinkage

180 days/80% and more Pass


(Without Mastic)
Part Number I.D. as supplied
I.D. after recovered
Length after recovered
Application Range
GNC2506-130BK 25 6 130 7.3~21
GNC2808-130BK 28 8 130 11.9~31
GNC3008-130BK 30 8 130 11.9~31
GNC3509-130BK 35 9 130 11.9~31
GNC4010-130BK 40 10


GNC4510-130BK 45 10 130 15~39

Other sizes and lengths can be customized by customer requirement (range of inner diameter as supplied is: 15~130mm, range of length is: 60~780mm)

Related Products