What is the best way to handle high permeability foils and materials?
High permeability materials increase in fragility as they decrease in thickness. Unlike other alloys, you must take care to minimize the stress introduced during cold working of the alloy (bending, punching, drilling, etc.). Foils can be cut and bent as necessary without excessive harm, but treating the material with care will increase its effectiveness as a shield. We recommend a final heat treating to maximize permeability once a shield has been constructed. This decreases the material’s permeability.
