Heat-shrinks for self-bondage

[Like Ra]

Did/does anybody use heat shrink wrap or tubing for self-bondage?

For example, what about a heat-shrink sleeve as a cock&ball sheath (or a chastity device)?

• Design: Shrink ratio 4:1 / +90 °C
• Type: Shrink tubing
• Colour: Black
• Material: Polyolefine
• Øbefore: 76.2 mm
• Øafter: 19.1 mm
• Length: 200 mm

Not sure about +90, but I usually use a hair-drier.

[Like Ra]

Or heat shrink wrap for self-mummification?

eBay: Heat Shrink Wrap film

- Super clarity, gloss and sheen..
- Low shrink temperature (200F to 250F) and very high shrinkage rate (over 40%) in all directions.
- It can be used with virtually any shrink machine. (manual, semi-automatic, and automatic) Use heat gun, heat tunnel or a blow dryer to shrink.
- By cutting and seal one end, you can make bags at length of your choice.

Would this also work with pallet wrap?
I need to give this a try, it would open up some nice options 😊

[Like Ra]

Not all pallet wraps can be heat-shrunk. I think it should be explicitly stated - see the ebay link above.

Heat shrink tube used in wires.
Tried this once. Used a 2 inch, about 6 inches long.
Lubed it up and slid it in. Got a super fast hardon. Heated up the tube with a blow dryer, and watched it shrink.
2 problems, 1, if you shrink while soft, don't pee with a hardon.
You'll get red piss. 2, if you shrink while having a hardon, the tubing will slip off after you get off.
I tried it once, the red piss scared me to the ER and the lost of a pile of $$$$$. Never do that again.

Ordinary household cling film (Saran Wrap) shrinks if you heat it with a hair dryer.