A Curious Investigation of Heat Shrink Tubing

Curiosity might have killed the cat, but from my personal experience with curiosity, it’s only made me wiser.  Curiosity is a catalyst of learning.  Genuine curiosity motivates the mind to learn.  And one can never learn enough.  There’s always something out there that you can educate yourself about.  And why not?  It’s not hard to learn, especially when you have a genuine curiosity.  You don’t have to master the subject, but you can become informed.

Recently, I was adjusting some wires behind my TV when I noticed a lot of wires were bundled by tubing that appeared warped.  And, I know “warped” can often have a negative connotation, but the tubing was warped in a way that enhanced the bundling.  Also, I know this isn’t some groundbreaking discovery—I’ve seen this type of tubing before.  But, for some reason, this sparked some curiosity.  I knew that somewhere in the world there was probably an entire industry dedicated to this one, miniscule product.  So, me being me, I decided to look it up.

The internet is awesome for anyone with an inquiring mind.  Research that would have once included a trip to the library and a few hours of reading took me only a few clicks and some light reading on the internet.  Basically, though, I found that what I had dubbed “that warped plastic thing” was actually called heat shrink tubing.

Heat shrink tubing is a tube which shrinks when heated.  The diameter and thickness of the tube vary.  Heat shrink tubing is used to insulate wires and offers abrasion resistance.  Additionally, it offers environmental protection for conductors, connections, joints and terminals in electrical engineering.  Essentially, you place the tubing wherever you need, and then use a hot air gun, or a similar device, to warp the plastic so it’s secure.  Continuing with security, some types of heat shrink tubing utilize a layer of thermoplastic adhesive to help provide a good seal and better adhesion.  Heat shrink tubing is made from a thermoplastic material like the fluoropolymer PTFE.  Oddly enough, PTFE is also commonly referred to as Teflon.

So, do I consider myself a master of heat shrink tubing?  No.  But, if someone were to ever bring up “those warped plastic things used to bundle wires,” I could now tell them how they’re used and a basic description of how they’re made.  I’d also be able to tell them that the same adhesive used for most heat shrink tubing is the same used on their Teflon cooking materials.  So, while curiosity might not work out well for cats, I think I’ll continue to follow my genuine curiosity.

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