Shielding effectiveness of Heat Shrink

[Auke Haarsma]

I was wondering why you often see the use of heatshrink, especially in high gain pedals (fuzzes, Boogeys etc).

Two questions:
1) Isn't heatshrink just a kind of plastic without special shielding capabilities?
2) (even if it has shielding capabilities) What is the added value? Most of the PCB's/stripboards have a lot of uncovered copper anyway.

[John Lyons]

It's just a coincidence.
Heat shrink is just for insulating bare metal.
It doesn't have any shielding properties.

john

[Auke Haarsma]

yeah, that is what I thought.

So, there is no point to use heatshrink on the lugs of pots (other than to prevent shorts).

And why use heatshrink like this on the trannies-legs?:
Much respect for this build. This is not to bash anyone, just trying to understand! I randomly 'stole' it from the pictures thread

[audioguy]

to insulate from touching one another because the builder left them pretty long

[Ben N]

Besides insulation, it is also handy for strain relief--fragile wire-2-lug solder connections can be made a lot more hardy by sliding some heatshrink over them and warming. But no, no shielding.

[Auke Haarsma]

Thanks for the replies guys!