Quote Originally Posted by Light Dependant Resistor View Post
However would require other material such as graphite added to be partially effective as a conductor, with then shielding as perhaps one flamboyant use

Mylar on its own is a excellent electrical insulator, which unfortunately does not have properties as a electromagnetic shield https://en.wikipedia.org/wiki/Electromagnetic_shielding
Yes, but the mylar used for shielding has a thin aluminum alloy metalized layer that acts as a shield.
I think we are debating semantics.