Magnetic Shielding Foil

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

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.

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

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Sealing Devices Inc. $$$

Easton, PA  |  610-829-5000

Orbel's design and manufacturing process enables unique engineered solutions for a variety of applications. Orbel offers today's most effective EMI/RFI shielding, photo-etched precision metal parts, precision metal stampings, and electroplated metal foils. Areas of specialization include aerospace, telecommunications, electronics, medical, automotive, and manufacturing. Orbel is ISO 9001-2008 and AS 9001-C Certified. For more information, visit Orbel.com or call 610-829-5000.

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Orbel Corporation $$$

Canandaigua, NY  |  888-599-6113

Select Fabricators, Inc. manufactures flexible packaging, cleanroom assemblies, and portable EMI shielding enclosures as well as contract product assembly and fulfillment for aerospace, medical, death care and industrial customers.

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Select Fabricators, Inc. $$$

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. $$$

Passaic, NJ  |  973-928-8300

We are space-qualified. Located in Passaic, New Jersey, we cater to the needs of numerous technology intensive industries including the US Government and its’ contractors. MWT Materials (and our predecessor, Millimeter Wave Technology) has been active in the research, development, analysis, and manufacture of radar absorbing materials and coatings (RAM) since the early 1980’s.

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MWT Materials Inc. $$$
placeholder image Spira Manufacturing Corporation Sealing Devices Inc. Orbel Corporation Select Fabricators, Inc. Seal Science, Inc. MWT Materials Inc.

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