Sealing Shielding

7 Most Common EMI Shielding Elastomer Gasket Mounting Choices

Parker Chomerics Extruded ElastomersThere 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)

Pressure Sensitive adhesive

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 GrooveFriction 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

Adhesive CompoundsAdhesive 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 EMI GasketForm-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

Friction fit on tangs requires special design consideration, but it does accommodate thin walls and intricate shapes. 

 

 

 

 

 

Spacer gaskets

Spacer GasketSpacer 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/Screws

Rivets and ScrewsRivets or screw mounting requires integral compression stops and mounting holes on the flange.

 

 

 

 

 

For more information, visit Parker Chomerics Division or contact us directly.

 

Jarrod Cohen


 

This blog was contributed by Jarrod Cohen, marketing communications manager, Parker Chomerics Division.

 

 

 

 

Related Content:

New Essential Handbook for EMI Shielding Applications

Top Three Design Tips for Corrosion Resistant EMI Protection

Design Decisions Relating to EMC Shielding

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