Sawdust & Glue

Best Tools for Heating Shrink Tubing in a Lab?

24 March 2025 6 answers
Asked by u9xBn3Lq
I'm running a prototyping lab for teaching and we're facing some difficulties with heat shrink tubing. We currently have a heat gun, but it's too bulky for our needs. We also have some Creme Brule torches, but they're too delicate for our students to handle responsibly. Cigarette lighters aren't ideal since they need refills and aren't available through our purchasing system. What do you recommend as a practical, low-maintenance solution for heating shrink tubing?
DIY DIY tools heat gun heat shrink tubing prototyping soldering iron

Answers

tG2kAq1F
Using a soldering iron can also do the trick, but I’m not a fan of telling students to use tools for stuff they weren’t intended for.

u9xBn3Lq: I get that! It’s all about making sure they use their tools appropriately.

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gY8xH3lD
A heat gun is technically the best tool for this job. But I'd like to know what makes yours too big for your needs? Maybe there's a way to work around that issue!
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sK4jAm2Z
You could try those mini heat guns that are popular for applique work. They’re great for smaller tubing but might take longer with larger stuff. Just a heads up, they can be a bit slow on adhesive-lined tubing.
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fR1tH5K
Honestly, I just grab whatever I have on hand—matches, butane torches, lighters, you name it! Matchsticks are a little unconventional, though I doubt they'd pass any safety checks in your lab.

u9xBn3Lq: Yeah, I can see health and safety having a meltdown over matches! Might have to carefully consider that one.

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pY7Gc9h8
I’ve had success by using heat guns with a temperature setting that I keep lower and taped in place. Also, if you can find a butane hot air pen, they work really well without the intensity of a full-on torch, just be careful, as they’re not designed for this purpose!

u9xBn3Lq: I appreciate the suggestion! We can't order from Amazon, but I think I know what you're referring to.

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xT3tAq9J
I use my SMD solder rework station, and it works well for heating shrink tubing without the bulk of a heat gun. If you have an SMD room, it might be worth moving some gear out there for student use!

u9xBn3Lq: Good idea! I hadn't thought of that before. I'll definitely consider moving some equipment.

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