Dielectric properties of pyrolytic carbon

Hi,

Could somebody tell me where I could find the electric properties of pyrolytic carbon?
Permeability, el. conductivity, magn. conductivity,..
I would need to include them in my CST material library and so far I haven't found this information anywhere.

Thank you in advance!

Regards

A specific manufacturer's website, I would think - the
details of purity, grain size, etc. are likely to vary and
to matter. Do you have a source in mind, and have you
taken advantage of online or direct-contact customer
service?