I am looking for Rigid PWB's (e.g. 0.062" thick FR-4) , without active 
circuits,  that are coated with a Polyimide coating. The PWB's will be 
used to evaluate the strength of adhesives that we develop.

Does anyone know where I may obtain such a PWB?

Thanking You In Advance,

Roger S. Benson
IPC Member
Grace Specialty Polymers