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3M™ Cold Shrink Technology.

The Cold Shrink Revolution

For over 60 years, professional electrical workers have trusted 3M to provide innovative solutions that enhance safety and productivity. That’s why we invented Cold Shrink technology: A revolutionary alternative to traditional heat shrink cable joints and terminations that can be installed in a fraction of the time, without the need for special equipment or permits.

With faster, easier installation, and the long-term reliability provided by superior environmental sealing, 3M™ Cold Shrink Medium Voltage Cable Accessories can help you achieve improved efficiency and performance, as well as significant cost savings.

Read on to learn more about the proven benefits of Cold Shrink technology from the people who invented it.

Cold Shrink Products

Learn more about 3M™ Cold Shrink Cable Accessories for medium and high voltage power distribution projects.

Learn more about our Heat Shrink alternative

Join the future and discover what Cold Shrink can do for you. From easier installation to improved environmental sealing, these videos break it down.

The cool science of cold shrink technology

  • Fast and easy one-step installation

    • Enables installation in 1/3 of the time or less compared to heat shrink
    • No special tools or work permits required
    • Easier to install in tight spaces or inclement weather
    • Easy to learn and train

    Long-term reliability

    • Dynamic ‘living seal’ expands and contracts with variations in temperature and load on the cable
    • Designed to last the life of the cable while ensuring excellent electrical performance

Why heat shrink may not be your best choice

  • More complex installation

    • Performance highly dependent on installer skill
    • Requires torch and hot work permit
    • Increases required time and potentially costs
    • Installation may require shut-down for facilities containing combustible gasses

    Reliability concerns

    • Non-integrated design does not allow for factory testing for Medium Voltage Splices
    • Creates a static seal that does not expand or contract with the cable, potentially leading to the creation of voids between the cable accessory and the cable, which may potentially lead to failure

A ‘living seal’ – for long term performance and protection.

  • A 'living seal' - for long term performance and protection.

    3M Cold Shrink products contain elastomeric bonds, giving them elasticity similar to rubber bands. When stretched and then allowed to shrink onto a cable, they exert a strong inward force that produces a constant squeezing effect on the cable – providing excellent electrical performance, and superior environmental sealing compared to heat shrink cable accessories.


    It’s a dramatic difference you can immediately see in this demonstration video!

Global presence. Global support.

  • Global presence. Global support.

    Sold in over 100 countries, and backed by our global team of technical support experts and supply specialists, 3M™ Cold Shrink products are fast becoming the worldwide standard for reliability, safety and productivity.

Cold shrink technology: building on 40+ years of 3M innovation

Since inventing Cold Shrink more than 40 years ago, we have continuously improved our technology to offer cable accessories that are reliable, safe, and easy to install, with excellent performance.

  • A history of cold shrink technology innovation

    • 1968 - 3M researchers invent cold shrink technology
    • 1971 - 3M™  Pre-Stretched Tube
    • 1972 - 3M™ Termination QTM
    • 1977 - 3M™ Cold Shrink QT-II Medium Voltage Termination
    • 1993 - 3M™ Joint QS-2000
    • 1996 - 3M™  Medium Voltage Termination
                   3M™ Joint QS-1000
    • 1997 - 3M™  Joint QS-III
    • 2005 - 3M™  Cold Shrink QT-III High Voltage Termination
    • 2009 - 3M™  High Voltage Joint QS-III
    • 2010 - 3M™ High Voltage Fluid-Filled Termination TP/TS-II
    • 2011 - 3M™ High Voltage Joint SS / SC-II
    • 2013 - 3M™ Cold Shrink QS4 Integrated Splice

  • Standards approvals

    3M™ Cold Shrink technology meets or exceeds the standards set by:

    • IEEE
    • IEC
    • GB
    • JCAA

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