How to Use Heat Shrink Tubing

BY: Christina Hansen

Heat shrink tubing is one versatile product … not only does it provide your cables with protection against abrasion, chemicals and weather, it's also great for bundling, color-coding and strain relief. Insulating your cables with heat shrink tubing can be an easy do-it-yourself activity … if you know the tricks for proper shrinking! Just follow our helpful how-to guide for a smooth-running project with great results.

PROJECT CHECKLIST

Experience Level: Beginner

Time Required: 2-5 minutes per foot of heat shrink tubing

Steps: 7

Supplies: Heat shrink tubing; heat gun or heat shrink oven

Budget Estimate: Anywhere from $40-$2000, depending on the amount of heat shrink tubing used and your choice of heat tool

STEP 1

Select the proper size of heat shrink tubing for your project. In order to get a secure fit, be sure that the tubing's recovered diameter (the diameter after shrinking) is smaller than the diameter of the area you're going to insulate. At the same time, the tubing's expanded diameter (the diameter before shrinking) needs to be large enough to easily fit over the area to be insulated, as well as any connectors attached to it.

STEP 2

Cut the heat shrink tubing to a usable length, and be sure to allow for a minimum 1/4" overlap over any existing insulation or connectors. Keep in mind that tubing also shrinks lengthwise…typically 5-7% during the shrinking process.

STEP 3

Slide the cut tubing over the object that you're covering; if you'll be splicing, slide the tubing over the center of the splice, and allow for equal overlap on both sides.

STEP 4

Before shrinking, check your tubing's specifications for the recommended heating temperature. Any commercial heat gun or heat shrink oven can be used to shrink the tubing. Since uncontrolled heat can cause uneven shrinkage, physical damage and insulation failure, the use of open flame is not recommended.

STEP 5

If you're covering a long length of cable with tubing, begin shrinking at one end, and gradually work your way down to the other. To ensure that the tubing shrinks evenly and without air bubbles, rotate the project as you're applying heat.

STEP 6

Evenly apply heat over the length and around the diameter of the tubing, until it is uniformly shrunken and conforms to the shape of the cable, hose, or splice that it's covering. Immediately remove the heat source, and allow the tubing to cool slowly before you apply physical stress to it.

STEP 7

Avoid overheating the heat shrink tubing, because it will become brittle and/or charred.

Tip: Silicone lubricant spray can be applied to wires or cords to guide heat shrink over them without compromising the heat shrink material.

 

©2018 CableOrganizer.com, LLC. This article may not be reproduced in part or in full without the written permission of CableOrganizer.com.

 

 

REVIEW SNAPSHOT®

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How To Use Heat Shrink Tubing
 
4.8

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5.0

Simple and fun

By Dion the Donkey

from Australia

About Me Rarely Read

Pros

  • Easy To Follow
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  • Quality Photos

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    • Educational
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    Comments about How To Use Heat Shrink Tubing:

    Loved the pictures

     
    5.0

    Heat alternative

    By Stereo

    from Colodrado

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      Comments about How To Use Heat Shrink Tubing:

      If you don't have a heat gun, just use a hair dryer.

      (2 of 2 customers found this review helpful)

       
      5.0

      Ezy and funny!

      By Tg

      from Sydney, Australia

      About Me Everyday Reader

      Pros

      • Deserves Multiple Readings
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        Comments about How To Use Heat Shrink Tubing:

        Humurous

        (1 of 1 customers found this review helpful)

         
        5.0

        I would advise my friends to see this.

        By David

        from San Luis Rio Colorado, Sonora, Mexico

        About Me Bookworm

        Pros

        • Bien Hecho
        • Easy To Understand

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          • Older Readers

          Comments about How To Use Heat Shrink Tubing:

          Very EZ to understand and very clearly written.

          (3 of 3 customers found this review helpful)

           
          4.0

          Really clear and logical explanation

          By dpf001

          from UK

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            Comments about How To Use Heat Shrink Tubing:

            Title says it all - really clear and logical explanation - all required details!

            (1 of 1 customers found this review helpful)

             
            5.0

            Good Job

            By Jerry the Race Car Driver

            from Eugene, OR

            Pros

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                Comments about How To Use Heat Shrink Tubing:

                Was that a Back to the Future reference?

                (7 of 9 customers found this review helpful)

                 
                5.0

                This was the best

                By Steve

                from Canada

                Pros

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                • Hilarious
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                  Comments about How To Use Heat Shrink Tubing:

                  This was surprisingly entertaining, and created a sense of instant loyalty to this company. You folks seem like my kinda people; I am motivated to learn even more from you!

                  (14 of 17 customers found this review helpful)

                   
                  4.0

                  informative and useful information

                  By Eric

                  from Hong Kong

                  Comments about How To Use Heat Shrink Tubing:

                  At last I know the correct steps of using heat- shrink tubing.

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