New Compounds Easily Shaped Into EMI/RFI Gaskets

Highly conductive, silicone-free, thermoplastic elastomer compounds have been developed for simplifing the manufacture and assembly of EMI/RFI gasketing. The Preseal compounds use silver as the conductive medium and can be injection molded into complex shapes and sizes; they can also be extruded or over-molded with other materials. And in addition to providing EMI shielding, the compounds can handle grounding and shock absorption assignments, as well as serving as heatsinks due to their relatively good heat conductivity. Preseal compounds have a volume resistivity of