There are many electromagnetic interference (EMI) shielding elastomer gasket mounting techniques that offer designers reliable, cost-effective choices in both materials and component assembly. These options offer aesthetic choices and accommodate packaging requirements such as tight spaces, weight limits, housing materials and assembly costs. Most EMI shielding elastomer gaskets attach using easily repairable systems. Take a look at the list we've compiled of the seven most common elastomer EMI shielding gasket mounting systems below.
Pressure-Sensitive Adhesive (PSA)
This quick, efficient attachment strip offers superior flexibility in attaching molded elastomer sheets, cut parts, and extruded conductive elastomers. But beware, Parker Chomerics does not generally recommend the addition/use of pressure sensitive adhesive.
Friction fit in a groove
Friction fit in a grove prevents the over-deflection of the gasket. A retaining groove will be required to be designed into the application, and this mounting choice is ideal for molded and extruded conductive elastomers.
Adhesive compounds are ideal for spot bonding non-conductive or conductive adhesive and are ideal for all conductive elastomer materials. It is important to select an adhesive suitable to adhere to either silicone or fluorosilicone, regardless of whether it is a non-conductive or conductive adhesive.
Robotically dispensed form-in-place conductive elastomer
Form-in-place (FIP) automated technology such as Parker Chomerics CHOFORM® applies high-quality conductive elastomer gaskets to metal or plastic housings with robotic precision. FIP is widely used in compartmentalized enclosures and other tightly packaged electronic devices in military, telecom, transportation, aerospace, and life science applications.
Friction fit on tangs
Friction fit on tangs requires special design consideration, but it does accommodate thin walls and intricate shapes.
Spacer gaskets are fully customized, integral spacers made from either conductive elastomer or plastic, and provide economical EMI shielding and grounding in small enclosures. Locator pins ensure accurate and easy installation, manually or robotically.
Rivets or screw mounting requires integral compression stops and mounting holes on the flange.