Sometimes you have to be a magician.... or smart.

[eTobey]

I had a big smile on my face, after i executed my idea, that actually worked quite well. 

Made a coax probe, and needed an additional shrinking tube on it (over the red piece), but it couldnt be put on, as there was that pin in the way. And that pin was quite a bit of struggle to put there.

Maybe someone else will run into this problem one day, and this would help.

Spot the magic that i applied. (with the tongue at the right angle) 

[Zoli]

Yes, some heat shrink tubing can be re-extended and shrinked back a couple of times(max I've done is 3).
Note: don't try with Teflon.

[eTobey]

Dont try what with Teflon?

[Zoli]

Dont try what with Teflon?

Expand and re-shrink the Teflon heat shrink; an example: http://cdn.techflex.com/assets/pdfs/catalog/hfa.pdf . With the usual Polyolefin works, up to 3 times.

[eTobey]

Wow. Never knew that there were other shrink tubes. Are there any other?

[Zoli]

Wow. Never knew that there were other shrink tubes. Are there any other?

Check the offer on Digikey: https://www.digikey.com/en/products/filter/heat-shrink-tubing/483
Note: good job to observe the possibility.

[tooki]

Wow. Never knew that there were other shrink tubes. Are there any other?

Tons more.

Polyolefin (which is really a broad family of compounds) is the most common. PVC is common for battery packs. Teflon is for "common" high temperature use. You can also get Viton and other polymers.

The wildest selection of exotic heat shrink materials I have found, by far, is from Daburn, a company perhaps better known for the large selection of exotic wires and cables they sell:
https://www.daburn.com/shrinkabletubing.aspx

PEEK heat shrink is fascinating; it's a normally quite rigid plastic, used for its high and low temperature tolerance, chemical resistance, low outgassing, and resistance to radiation. It's also very expensive (e.g. around $2 for a 7"/160mm zip tie, in a pack of 100). Imagine my surprise when I found Daburn selling it as heat shrink!

[tooki]

I had a big smile on my face, after i executed my idea, that actually worked quite well. 

Made a coax probe, and needed an additional shrinking tube on it (over the red piece), but it couldnt be put on, as there was that pin in the way. And that pin was quite a bit of struggle to put there.

Maybe someone else will run into this problem one day, and this would help.

Spot the magic that i applied. (with the tongue at the right angle) 

Nice!

4:1 heatshrink is amazing, by the way. Would easily fit over the SMA connector there.

[coppercone2]

I am thinking that if you can't do heat shrink it might be better to tie it up with some lace and put liquid rubber on it.


I strongly suggest not to make a habbit out of this, because heat shrink can burst. I saw it once, the heat shrink split like a ripe banana and fell off!!!! It can literately split open if you mess with it too much! 

and it did not happen immediately, it looked great, and a while later I see it is burst.

and this was 3m brand from DK

Now I always consider what can happen if it bursts. If I have to do anything I will cut it off and put a new one, even if it means work

I think people over estimate its reliability

[thm_w]

Other options
Silicone tape: https://www.aliexpress.com/item/4000592790143.html
Self bonding rubber tape: https://www.aliexpress.com/item/4000664188993.html
Cloth harness tape: https://www.aliexpress.com/item/1005003892664824.html
Hot glue

[eTobey]

What advantage would a cloth harness tape have againts electrical tape?
I can imagine it can burn, if you got the wrong quality.

[thm_w]

Electrical tape tends to degrade with time and the adhesive gets nasty and difficult to clean.

PVC/Vinyl electrical tape is rated to ~100C. The cloth harness stuff is theoretically rated to 150C.
The self fusing rubber even higher (180C), and the silicone the highest (260C)

Silicone and rubber have good water resistance, though in this case it doesn't matter.
The silicone tape can crack, not sure if its environment or poor quality tape. At least it won't leave any residue.

[eTobey]

Electrical tape tends to degrade with time and the adhesive gets nasty and difficult to clean.

That sounds, like electrical tape should never be used for electrics. I guess its a matter of "it depends"?

Found a great overview here:
https://no.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/electrical-insulation-tape-guide&srsltid=AfmBOorCtw_WK0YGwQVvQ7OJ1onEJMhj6XD-m-X_lJY7912lwzZh_Lq1

[SiliconWizard]

Is that a coaxial fishing hook?

[eTobey]

Is that a coaxial fishing hook?

Dont be silly. Its easy to see, that it is a coaxial harpune! I dont go for small fish.