What do you call a material that cant carry electricity?

Answer 1

Most types of Glass does not carry electric current.

Same is true for many types of plastic.

It is also true for destilled water. (Water conduct electricity when polluted by minerals and salts. We do not find destilled water in nature though.)

There are many materials that won't carry electric current.

Maybe somebody could find a common denominator for these.

Answer 2

Any material we see around us contains electrons, electrons are an essential part of atoms. Whilst it is possible for an atom to be stripped of electrons (producing an ion) these atoms will not able to forms bonds to each other.

There is, however, one possible exception. A neutron star is basically one big atomic nucleus of gigantic proportions (radii of about 10 km) containing virtually only neutrons and no protons or electrons. You might call this material neutronium or something, and it would contain no electrons.

But, it cannot be used to build starships out of because the material is held together by gravity; removing it from the star will either cause it to disintegrate (free neutrons have a lifetime of about 15 minutes) or to be captured into regular atoms (which again have electrons).

Answer 3

An insulator.

Answer 4

an insulator