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.
Microphoto, Inc.
Roseville, MI | 800-345-0568Microphoto is a manufacturer, distributor and service center for a multitude of industries. Industries served include medical, computer, decorative, electronic, aerospace and automotive. Services include EMI shielding, RFI shielding and electromagnetic interference shielding.
VTI Vacuum Technologies Inc.
Reedsburg, WI | 800-482-1941VTI Vacuum Technologies, Inc. supplies EMI/RFI/ESD shielding and form-in-place gasketing solutions for medical, defense, aerospace and industrial devices. VTI utilizes a vacuum deposition process for selectively shielding plastic electronic enclosures. The company robotically dispenses conductive and environmental form-in-place gaskets for sealing plastic and metal components. VTI is ISO 9001:2008 certified, ITAR compliant and veteran owned small business established in 1993.
Peridot Corporation
Pleasanton, CA | 925-461-8830Peridot Corporation is a precision manufacturer of RFI and EMI shielding for a multitude of industries, including medical, telecommunications, computer, electronics, automotive and aerospace. We offer a vast array of manufacturing technologies, all under one roof, to ensure optimum shielding solutions.
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.