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Magnetic Shielding Foil

A reliable source for EMI Shielding information and leading EMI Shielding Companies.

These waves commonly affect AM/FM radios, cell phones and televisions. Because these electromagnetic waves can disrupt the function of many electronic devices, some kind of shielding needs to be integrated into the assembly of the device. Read More…

Magnetic Shielding Foil Electromagnetic waves are emitted by natural and man-made sources that include the Sun, car ignition systems, cell phones, thunder storms and even the northern lights.
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Leading Manufacturers

San Fernando, CA  |  818-764-8222

Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations.

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Spira Manufacturing Corporation $$$

Lancaster, NY  |  716-684-7600

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 and elastomers.

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Sealing Devices Inc. $$$

Tipp City, OH  |  937-667-8484

Established 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!

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Captor Corporation $$$

Bethlehem, PA  |  800-576-7325

Seal 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!

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Seal Science, Inc. $$$

Hackettstown, NJ  |  908-227-6857

East 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.

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East Coast Shielding $$$
placeholder image Spira Manufacturing Corporation Sealing Devices Inc. Captor Corporation Seal Science, Inc. East Coast Shielding

This is done using a variety of methods depending on the application. Mobile phones usually use a Faraday cage, a shield made of conductive metal that forms a small cage in which the components of the device are encased. Other pieces of equipment use a shield that is made of layers magnetic alloys that are highly permeable so that they absorb the electromagnetic waves instead of transferring them to the device that they protect.

Co-NETIC AA Foil with Pressure Sensitive Tape Co-NETIC AA Foil with Pressure Sensitive Tape - Magnetic Shield Corp.

More recent technological advances have allowed for a shielding method where a special spray with copper, nickel and aluminum particles is coated on to the plastic housing of a device.

For applications where space is limited, a special type of magnetic shielding foil is used. This foil is available in a variety of sizes and permeability levels to meet the needs of the equipment with which it will be used.

Some manufacturers supply rolls of this foil to other product developers, and they will even produce custom sizes for large business clients. Magnetic shielding foil is used in sensitive electronic equipment like industrial controls, circuit control boards and more.

Because the foil is so thin, it can easily be cut and installed in tight spaces where there is not much room for heavy layers of protection. Shielding foil is also usually much cheaper than other shielding solutions.

The drawback of magnetic shielding foil is that it can usually only be used in low-intensity settings because the thin layer of foil does not allow for a great amount of electromagnetic absorption like a layer shield of Faraday cage would.

It is very easy to handle and install, and it can even be wrapped in spirals around a cable to prevent the wire inside from being disrupted by external electromagnetic waves or from emitting harmful signals beyond the cable.

Magnetic Shielding Foil Informational Video