(Electro)magnetic properties of mylar? If you wrap a laptop in mylar

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SUMMARY

Mylar, an insulator coated with metal, can be used to wrap a laptop to potentially insulate it from radio signals. However, it does not magnetically affect the computer or its hard drive, as the hard drive components are not magnetized. A user reported a subjective experience of reduced weight after wrapping their laptop in Mylar, but this perception lacks empirical evidence. Overall, Mylar is not expected to interfere with electronic devices in terms of magnetic properties.

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syntotic
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Mylar is an insulator, but it is coated with metal. Intuitively it should be possible to wrap a laptop in mylar and insulate the laptop from radio signals... but is there any chance it might affect magnetically the computer and/or its hard drive? I mean a very loose airy wrapping, like in packaging, not a tight wrapping like in gift boxes. After all, we do have capacitors made of mylar...

[Incidentally, I did wrap the laptop in mylar for a while after a wi fi-induced BSOD, and I had briefly (?) the impression that it went lighter! But of course it was subjective...]

Danilo J Bonsignore
 
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There's no need to be snide. Threads sometimes fall through the cracks without being answered.

I doubt the mylar would have any effect on your computer's hard drive since it isn't magnetized.