Characteristics of Superconductors

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What are the permeability and permissivity of type I superconductors?
 
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Type I superconductors expell magnetic fields as they pass below critical temperature.

I think this means that an impressed field H would result in a magnetic field,
B=H \mu =0 , so that mu is zero.

I don't know about the permissivity \epsilon.
 

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