Gore-Shield GS500 from WL Gore & Associates is an EMI gasket material consisting of expanded polytetrafluoroethylene (ePTFE) that has been filled with a highly conductive carbon particle. This material is intended for use as a non-military gasketing material to suppress unwanted electromagnetic or radio frequency interference, particularly in applications where inter-cavity shielding is important or compliance with international EMC specifications.
The material is available as a die-cut gasket or in strip form. Diecut gaskets are supplied to customer dimensional specifications or CAD files. A range of standard gaskets for D type connectors and waveguide flanges is also available.
For high volume applications, GS500 gaskets are compatible with certain semi-automated assembly machines.
Gore-Shield GS500 is supplied as standard with an integral pressure sensitive adhesive. The material is available in various thicknesses ranging from 0,25 to 2,5 mm, and is specified for temperatures between -45°C and +120°C. Shielding effectiveness of a 2 mm thick gasket at 25% compression is greater than 45 dB from 0,3 to 3 GHz.
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