EMI gaskets are a type of physical EMF (electromagnetic field) protection, much like EMI enclosures, or “faraday cages,” which protect sensitive electronic equipment from electromagnetic interference by surrounding EMI sensitive or EMI emitting electronic equipment and absorbing the harmful EMI and RFI. Read More…
Leading Manufacturers
Spira Manufacturing Corporation
San Fernando, CA | 818-764-8222Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations.
Sealing Devices Inc.
Lancaster, NY | 716-684-7600Sealing Devices is a leading North American distributor and fabricator of EMI shielding products, including conductive elastomers, Soft-Shield® low closure force gasketing, windows, conductive adhesives, formed-in-place parts, vents and elastomers.
Captor Corporation
Tipp City, OH | 937-667-8484Established in 1965, Captor Corporation has been an industry leader offering high quality custom EMI filters. Our services use "off the shelf" parts, are faster and more affordable than our competitors. We also specialize in manufacturing low to medium volume jobs of circuit boards and cable harnesses. Contact us today for EMI/RMI filter solutions tailored to meet your specific requirements!
Seal Science, Inc.
Bethlehem, PA | 800-576-7325Seal Science, Inc. (SSI) is an industry leader in design engineering and precision manufacturing of materials and components for critical sealing applications and advanced technology systems. SSI provides cutting edge technological solutions for mechanical and electrical systems; including structural subsystem design, signature management and electromechanical interference (EMI) shielding products. Contact us for more information!
East Coast Shielding
Hackettstown, NJ | 908-227-6857East Coast Shielding manufactures and distributes EMI/RFI shielding materials. We offer conductive elastomers, wire, shield strips, wire mesh, air ventilated panels, EMI gaskets and more. Call us today so we can talk one-on-one to ensure that your EMI shielding needs are met.
Custom Die-Cut EMI Gaskets - Spira Manufacturing Corporation
Spring-Line Beryllium-Copper Gaskets - Sealing Devices Inc.Shielding sensitive electronic equipment from electromagnetic interference (and shielding high EMI-emitting equipment from contaminating other equipment) can be achieved by encasing EMI sensitive or EMI emitting circuits in EMI enclosures.
Electronic equipment manufacturers and suppliers use EMI gaskets in applications for both internal and external shielding such as electrical automotive systems, circuit board housings, central processing units, laptops and desktop computer housings.
To ensure maximum EMI and RFI containment, EMI gaskets are frequently paired with EMI enclosures to seal gaps, seams and joints, making EMI gaskets often a necessary product in EMI enclosure assemblies.
EMI gaskets are made from electrically conductive rubber materials such as silicone, nitrile and styrene butadiene rubber (SBR) and are often manufactured in combination with EMI shielding metals such as Mu Metal®. Like gaskets for non-EMI applications, EMI gaskets are often die-cut with precision shapes and holes.
Die cutting is the process of stamping or cutting two dimensional parts out of flat sheets of material. Another method of manufacturing EMI gaskets is extrusion. In this process, EMI gaskets are extruded into gasket strips, the process of which involves squeezing heated EMI materials through a die for shaping. In addition, EMI gaskets can even be extruded and then bonded to magnetically conductive metals such as nickel (and its various alloys), copper or aluminum.
The rubber to metal bonding process adheres rubber to a metal substrate in order to form a product with a permanent, air and water tight seal between the two materials.
As electronic equipment advances and electromagnetic and radio frequencies become higher and stronger, EMI gaskets are used for more robust protection against radio frequency signals which penetrate cracks, gaps, seams and any unprotected area to cause equipment malfunction and failure.