Published 09 Jan 2026
We’d like to welcome our newest addition to the Thorne and Derrick team! Eva will be joining us as a content creator apprentice at our office in Chester-Le-Street. Eva will bring fresh new ideas to all of our social...

A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This video by 3M Electrical shows how to apply 3M Cold Shrink End Caps safely.
3M Cold Shrink end cable caps environmentally seal and mechanically protect exposed low and high voltage cable ends using no specialist tools, mastics or tapes – manually applied the cable caps are safe and fast to install in the field for immediate protection of unsealed cable ends against water ingress.
The 3M video explains how a Cable Abandonment Kit can be used to safely abandon a cable either permanently or temporarily. The Cold Shrink kit ensures that if the cable is accidentally re-energised it remains safe.

Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Cold Shrink Cable End Caps and Cable Abandonment Kits.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.

Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M

A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
This video by 3M Electrical shows how to apply 3M Cold Shrink end caps safely.
3M Cold Shrink cable caps environmentally seal and mechanically protect exposed low, medium and high voltage cable ends using no tools, mastics or tapes.
The 3M video shows how cables ends can be quickly and simply sealed – simply position the end cap over the cable end and unwind the core to install the Cold Shrink cap onto the exposed cables.

Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Cold Shrink Cable End Caps.
| 3M Cold Shrink Cable Caps Part Number | Cable Diameter Use Range (mm) |
| EC1 | 11.6 – 20.9 |
| EC2 | 15.9 – 30.1 |
| EC3 | 26.0 – 49.2 |
| EC4 | 45.5 – 84.3 |
| Test Methods | Typical Value |
| Colour | Black |
| 300% Modulus (ASTM D-412-75) | 480 psi |
| Ultimate Tensile (ASTM D-412-75) Original | 1400 psi |
| Ultimate Elongation (ASTM D-412-75) Original | 750% |
| Die C Tear (ASTM D-624C-73) Original | 150 pli |
| Fungus Resistance (ASTM G-21) 28 Days Exposure | No Growth |
| Moisture Absorption 7 Days at 90ºC in H2O | 1.8% Weight Gain |
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
♦ Did you know? Cables can be insulated, protected and repaired using cold shrink tubing available in both EPDM rubber or fire resistant silicone.

Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
Published 09 Jan 2026
We’d like to welcome our newest addition to the Thorne and Derrick team! Eva will be joining us as a content creator apprentice at our office in Chester-Le-Street. Eva will bring fresh new ideas to all of our social...
Published 09 Jan 2026
Insulating Matting Recommendations and Guidance for Electrical Safety Guest Blog From COBA Electrical safety is non-negotiable, especially when working around live switchgear, high-voltage panels, and electrical distribution equipment. One critical but sometimes overlooked safeguard is electrical insulating matting, designed...