RFI Gasket Manufacturers and Suppliers

IQS Directory provides a comprehensive list of RFI gasket manufacturers and suppliers. Use our website to review and source top RFI gasket manufacturers with roll over ads and detailed product descriptions. Find RFI gasket companies that can design, engineer, and manufacture RFI gaskets to your company’s specifications. Then contact the RFI gasket companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product news articles. Whether you are looking for manufacturers of cable shielding, radiation shielding, EMF protection, or customized RFI gaskets of every type, this is the resource for you.

  • San Fernando, CA

    Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations. We have been providing reliable, cost-effective EMI & RFI shielding solutions for over 30 years, and to this day we continue to provide EMI products with innovation & expertise. Spira is an AS9100 and ISO 9001:2008 certified company.

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  • Lancaster, NY

    Sealing 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 as well as elastomers, pads and tapes used for managing related thermal applications. The company is ISO 9001:2008 registered.

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  • Burbank, CA

    Artcraft is a third-generation company founded in 1951. We offer a wide variety of services, including EMI and RFI shielding. From missile parts for the US military, to plating tubes for satellites launched into outer space, no project is too difficult for our team to handle. Call us today and tell us about your next project!

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  • Sweetwater, TX

    We are one of the first in EMI technologies! Our roots trace back as early as the 1930s. We work hard to bring you the latest and greatest in EMI technologies and distribution. ADIT Electron Tubes manufactures low-level light detection systems and devices. Our photomultipliers are apart of a major international industry that we are a supplier of. Call us today for more information about our EMI technologies!

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  • Los Angeles, CA

    FMS has been eliminating electromagnetic interference (EMI) and radio frequency interference (RFI) issues in commercial & industrial buildings, medical facilities, and research laboratories for over 25 years. Using the latest technology, backed by independent research and development, FMS delivers customized, innovative mitigation solutions for the most complex interference problems worldwide.

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RFI Gaskets Industry Information

RFI Gaskets

A gasket can be defined as a mechanical seal that assists in filling gaps between two or more adjacent components to prevent leakage or any form of interference that can make its way through the spaces. Upon hearing the word “gasket,” one may immediately think of a gasket within an automotive or industrial setting. However, there are other types of gaskets available. RFI gaskets, which can also be referred to as EMI gaskets, are utilized to reduce radio frequency interference to keep electronic devices functioning efficiently. Without the aid of RFI gaskets, electromagnetic and radio waves are able to travel through any gaps or slots in an electrical component or a magnetic shield.

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Applications of RFI Gaskets

There are numerous industries that utilize RFI gaskets, including:

  • Aerospace
  • Data Communications
  • Automotive
  • Computers
  • Military
  • Network Equipment
  • Telecommunications
  • Medical

Types of RFI Gaskets

RFI gaskets are typically constructed with a rigid surface and designed to be as conductive as possible and closely fit the components it protects. To accommodate a variety of components, RFI gaskets can be fabricated into countless configurations using a variety of materials.

Here are some common configurations of RFI gaskets:

Fingerstrip Gaskets
Generally have the largest physical compression range and are capable of absorbing a wide frequency range. These gaskets are highly customizable and ideal for high-cycling, frequent-access applications.
Form-In-Place Gaskets
Recommended for applications that require precision fitting. These gaskets can be applied to any metallic, plated, or painted surface that requires environmental sealing in addition to electromagnetic interference.
Wire Mesh and Knitted Gaskets
Can be constructed from metal wires such as aluminum, clad steel, tin-plated copper, and monel. Some advantages of using a wire mesh gasket is that it can provide shielding from a broad range of frequencies, is cost effective, resilient, and available in a broad range of sizes, shapes, and mounting options.
Oriented Wire Gaskets
Involve conductive wires that are encompassed by either sponge or solid silicone, and they are capable of providing adequate protection against rain or moisture as well as EMI radiation.
Electrically conductive elastomers are recommended for environmental sealing and EMI shielding and can be made with a variety of conductive fillers, which include carbon, silver, and passivated aluminum, and elastomers such as silicone rubber, fluorosilicone rubber, and ethylene propylene diene monomer (EPDM).

Factors to Consider When Purchasing RFI Gaskets

Since RFI gaskets can be made in an overwhelming variety of ways, there are quite a few considerations that must be made in deciding which gasket is appropriate for the desired application. For instance, there are materials that are used to make gaskets that are more sensitive to extreme temperatures than others. For example, a material that has been recently developed to manufacture gaskets is conductive plastic, which is made by adding steel fibers and carbon nanotubes or adding a conductive filler to a plastic in order to make it electrically conductive. Conductive plastic has been proven to be highly advantageous, as it is lighter in weight, more reliable, and more cost-efficient. However, one drawback to the material is that it is highly sensitive to extreme temperatures, and may crack or melt from prolonged exposure.

There are three main steps in evaluating an application to determine the right type of RFI gasket and shielding equipment to use. First, you must determine the source of the interference, which can be external or internal. External interference can come from a source outside the device. Therefore, in addition to gaskets, an enclosure, chamber, or walls may be utilized to protect the device. Internal interference can be generated by components within the device and affect each other. Therefore, the components must be shielded with an enclosure and gaskets to confine the electromagnetic waves they generate. Second, you must determine the interference’s location and its magnitude, or strength, as these factors help determine the material of the gasket. You can obtain these measurements by way of field mapping and the use of a tool known as a Gaussmeter and other lab equipment sold in lab kits. The third and final step is calculating the shielding requirements using your data.

The electrical engineers who design these gaskets are required to familiarize themselves with the concepts of electrodynamics, such as electromagnetism and the nature of electricity. Understanding radio waves is crucial in deciding the appropriate courses of action to shield a particular device from electromagnetic interference and has played a pivotal role in the development of RFI shielding technology as we know it today.

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