Heat Shrink Kit

We love heat shrink! We use it for all sorts of handy projects. Use it to reinforce connections, protect devices, and electrically isolate exposed solder joints. We worked with a manufacturer to create a kit that we would use: lots of colors, lots of sizes, nothing too long. We specially requested some of the sizes with heat sensitive glue which significantly increases stress relief and water proofing. This kit includes 95 pieces of heat shrink, all of varying colors and sizes, and comes in a clear bag. All pieces are 10cm in length.

Bag includes the following diameters, 5 pieces of each:

  • Black
    • 1.5/3.7/6.5/9.5mm
    • 6.5/9.5mm with glue
  • Red
    • 1.5/3.7/6.5/9.5mm
  • Green
    • 1.5/3.7/6.5/9.5mm
  • Yellow
    • 1.5/3.7mm
  • Blue
    • 1.5/3.7mm
  • Transparent
    • 6.5mm

Heat Shrink Kit Product Help and Resources

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Build a custom wireless audio Bluetooth adapter using BlueCreation's BC127 and add it to your old speaker system!

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How to strip, crimp, and work with wire.

Pokémon Go Patches with EL Panels

August 3, 2016

Add a cloth stencil over EL panels to create glowing logos and designs.

3D Printed Illuminated Wand Prop

November 29, 2018

In this tutorial, we will learn about how to create a theatrical prop for a performance by 3D printing a wand and adding an LED.

How to Use a Hot Air Rework Station

April 10, 2018

Hot-air stations or heat guns are very useful tools and are essential for any electronics workbench. When working with or building printed circuit boards, there is a lot of room for errors to be made. Have no fear though, there are ways to remedy this with a hot air rework station!

Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.


Skill Level: Competent - You might need to break out the power tools. Nothing beyond a power drill or rotary tool should be required, but you might have a hard time with just a screwdriver and hammer. Cutting holes into plastic or metal might be required.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Kevin Pepperman / about 13 years ago / 3

    Wow! for 7.95 there must be 5 times the number of tubes than the kit I bought for $7 at the shack a few months ago. They are good tubes too-- they take the heat very well.

    • Sparkst3r / about 13 years ago / 7

      You shopped at the shack how dare you

    • razrburn / about 13 years ago / 3

      the other day I went to the shack and needed and soldering iron tip, my original 7$ soldering iron needed a new tip, the one tip alone is 3$.. radio shack's little version of printer companies and ink...

  • baum / about 12 years ago / 2

    Best Purchase Ever (because heat shrink is awesome). Do not buy the regular heatshrink; it's to big for standard wire. And what's up with the 9.5mm (.374 inches/0 GAUGE WIRE!!!!) It's humongous. Maybe we can use the magnet squares (of " hold small children to a fridge" fame) and use the big heat shrink to wrap up the children!

    p.s. and transparent heatshrink is REALLY COOL!

    • planetarian / about 12 years ago / 2

      old post, but...

      The large heatshrink is great for very small self-contained circuits -- For instance, it's common to use on MOSFET control units in airsoft guns, to surround the whole unit (FET+diode+resistors+wires) and keep it from making contact with the metal chassis while inside the gun.

      • JGuthridge / about 12 years ago / 1

        That's similar to what I use the larger sizes for, after splicing a two-wire line with their own heat shrink tubes over the solder joins, I put one larger one over the pair for further protection.

        It would help if that darned cat would finally gnaw into something of particularly high voltage and either kill off the bad habit, or...

        Can't tell you how many wires the feline has bisected, bit, mangled, chewed, or otherwise made useless.

  • kilokahn / about 12 years ago / 2

    What can be said that hasn't been said. The tube here is very good, they even have 1.5mm which is perfect for LED legs and covering bare bus wire.

  • Member #367806 / about 10 years ago / 1

    I checked with tech support and they said they usually use their heat gun at 212F with this stuff. I also stuck it in my oven at 215F and then 250F because I got impatient and that worked as well (better than using a hair dryer when I needed to do a whole bunch of parts).

  • PointyOintment / about 10 years ago / 1

    How am I supposed to tell which black pieces have glue? I have ten black pieces of diameter 6.5 mm and five of diameter 9.5 mm, and they all look identical to me.

  • BrianLow / about 12 years ago / 1

    What is the shrink ratio? 2:1, 3:1? Thanks.

  • MostThingsWeb / about 13 years ago / 1

    This kit is awesome! I love that some of the pieces have water-proofing glue.

  • Jamo / about 13 years ago / 1

    What is the heat resistance of these parts? Specifically do you think they could be used to insulate the wire on the power resistor here?

    • Ivan747 / about 13 years ago / 1

      Well if you are into that kind of projects, I think you have bigger problems... Better get some specialized heat shrink on Digi-Key

Customer Reviews

4.5 out of 5

Based on 8 ratings:

Currently viewing all customer reviews.

My Heat sink Kit

Just received my heat sink kit and it looks just great. A good selection of sizes and just the right length for most of my needs. Keep up the good work.

Great Price, Works Perfectly!

I love this kit! It comes at a great price, much less than I've had to pay at other electronics parts vendors, and it comes in lots of sizes, ranging from small enough for thread-width wire to large enough for thick cables and small circuit boards! Also, it has multiple colors, which is real useful in a large project with lots of color-coded wires, and it shrinks a LOT, and without much finesse.

Great product! Thanks

Great product, but...

I love this stuff, and it was very appealing that included both the dual wall adhesive kind and the regular. However, I wish the adhesive and regular kinds were separate, so you don't have to guess which one will have adhesive. Other than that, I highly recommend it.

Solutions come in many shapes and sizes

So I was looking at replacing one of the u joint traps underneath my sink, but alternatively decided that we could utilize sliced segments of heat shrink that were then melted back together to create a temporary patch for the workshop sink. Much quicker than replacing the u joint trap. I could not find the MSDS on how long it takes for these to degrade when exposed to temperature swings common on the sink, but who knows how long this patch will hold! Will update with findings on how long it will last. edit: hey what's with this /f am I branded?

This is a reasonable assortment for the workshop.

I would have liked more colors and at least one of each size in that color, in addition to the good number of red and black.

Individual packs of one size each?

I use heat shrink tubing all the time in my robotics projects, but only the two smallest sizes. I'm guessing this is true of a lot of people, so it would be nice to be able to buy packs of only one size instead of having to pay for a bunch of stuff I can't use.