For non-conductive materials, the sample is ground with graphite powder to make it conductive.

Radio-frequency has ability to appear to flow through insulators (non-conductive materials).

It is also known to be a non-conductive material due to its volatile content.

The other phones have, at the very least, some thin piece of plastic or other non-conductive material between the user's hand and the actual antenna.

They are also able to measure the thickness or density of non-conductive materials.

In this way non-conductive materials can be charged to a significant degree, either positively or negatively.

If the mandrel is made of a non-conductive material it can be covered with a conductive coating.

We'd need some non-conductive material, fine enough to lay across the rider-spine without actually derailing the train.

Electrically non-conductive materials can be machined only with specific set-up of the process.

Its ability to operate through any non-conductive material permits complete invisibility.