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Heat Shrinkable Cable End Caps


Compaq Tube are medium wall and heavy wall black tubing. CMW tubes are used for environmental protection of low voltage cable termination and insulating the connectors for low voltage straight through joints/splice rated upto 1.1KV. CHW tubes are used for mechanical protection and outer sealing of underground straight through cable joints / splice upto 36KV.


  • These tubes are manufactured from high quality cross inked polyolefin material.
  • Optional hot melt adhesive lining for complete environmental protection and insulation.
  • Excellent resistance to weathering, UV rays, chemical and solvents.
  • Maximum cut length available upto 1500 mm.
  • Custom dimensions, thickness, length & colours available on request.
  • Conforms to IEC 60684-3-247 standard. meets IP68 (ingress protection)


Properties Value Standard
Tensile Strength 12 Mpa (N/mm2)(Min) ASTM D638
Ultimate Elogation 300 % (Min) ASTM D 638
Longitudinal Change +10 % (Min) ASTM D 2671
Hardness 45 Shore D ASTM D2240
Accelerated Ageing (1200C for 500 hrs ASTM D2671
Tensil Strength 10 Mpa N/mm2 (Min) ASTM D638
Ultimate Elongation 300% (Min) ASTM D638
Low Temperature Flexibility
-200C for 4 Hrs
No Cracking ASTM 2671
Heat shock (2500C for 30 Min) No Cracking or flowing ESI 09-11
Shrink Temperature 1250C IEC 216
Continous Temperature Limit -400C to +1000C IEC 216
Volume Resistivity 1 x 1012 ohm cm Min ASTM D257
Dielectric Constant 15 (Min) ASTM D150

All dimensions are in mm

Code D
  s f
  Min Max
CSB-1 80 34
CSB-2 80 34
CSB-2A 100 34
CSB-3 140 65