Don't find PVC material in CST Studio

Hi,
I am doing some antennas simulation inside differents housings, and increible I am not finding PVC (Polyvinyl chloride) in the material library, which I need for the housing. What should I do? create the material looking for all its characteristics? another alternative? I guess someone should have used something made of this common material in any simulation.
Bests

create the material with the characteristics that matter to you. you don't have to use density and thermal characteristics if you don't care about those in your analysis. probably just dielectric constant (permitivity) and loss tangent.