EMI Shielding/

EMI Coating

EMI coating is sprayed on the interior of electronic device housings in order to protect sensitive electronic equipment from electromagnetic interference. EMI, or electromagnetic interference, is the magnetic field which is created by electrical currents; EMI can travel along wires, electrical circuits and conductors, while radio frequency interference (RFI) is radiated electromagnetic “noise,” which travels through the air as radio waves.

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Spira Manufacturing Corporation
North Hollywood, CA
818-764-8222
Spira Manufacturing Corporation is committed to manufacturing quality products to ensure that you, the customer, will be able to make an informed decision and choose the best product for your design. Each part manufactured by Spira fills a very specific need in the market, not found in other EMI coating. Let Spira become your solution, call or visit their website today!
Compac Development Corporation
Bay Shore, NY
888-546-3313
The Compac Development Corporation concept is geared to fast, accurate and dependable deliveries to meet the most demanding delivery schedules. The company wants you to receive your EMI coating when you need it. For additional information or assistance on the extensive line of products and services Compac offers, call or visit their website today!
Magnetic Shield Corporation
Bensenville, IL
888-766-7800
At Magnetic Shield Corporation, our talented engineering staff will work closely with your personnel to design a custom solution to meet your specific problem. We will then execute that design to produce your EMI coating in a timely fashion, with the quality that has been our hallmark for over 65 years. To discover more services and products we can offer, call or visit our website today.
INTERMARK (USA), Inc.
San Jose, CA
408-971-2055
INTERMARK (USA) Inc. recognizes that with the progression of electronic technologies, components in complex systems have become increasingly sensitive to electromagnetic interference. For this reason having the correct EMI coating can be vital to the life of your electronics. Call today for more information on the products and services offered at INTERMARK.
Dexmet Corporation
Wallingford, CT
203-294-4440
Dexmet Corporation maintains a continuous commitment to quality control and process improvement, including SPC implementation. Ongoing innovations include our unique, strand annealing furnace, as well as a host of other, highly specialized, proprietary equipment. Our EMI coating is at the top in the industry and our responsiveness to customer's needs and our delivery service is unmatched.
Sealing Devices Inc.
Lancaster, NY
716-684-7600
Sealing Devices is one of the largest authorized stocking distributors and fabricators of o-rings, EMI coating, adhesives, vents, sponge and sealing products in North America. Here, employees and customers continue to be the primary focus and driver of the company`s growth. To find out more about what Sealing Devices can offer you, be sure to contact the company today.
Equipto Electronics Corporation
Aurora, IL
800-204-7225
For serious attenuation problems, choose Equipto's EMI Shielded Cabinets. Manufactured from 400 series magnetic stainless steel, they offer shielding levels through Tempest. Using beryllium copper and silver coated gasketing ensures galvanic compatibility and long lasting shielding effectiveness. See what this ISO 9001:2008 certified, RoHS compliant company can do for EMI coating.

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EMI Coating

Shielding sensitive electronic equipment from electromagnetic interference (and shielding high EMI-emitting equipment from contaminating other equipment) can be achieved by blocking the EMI with a conductive by coating equipment or equipment enclosures with EMI coating. EMI coating allows for more flexible applications than EMI enclosures, as it may be spray-coated to any number of enclosures, areas and insulators.

Various types of EMI coatings are often spray coated to the inside of plastic enclosures, surrounding the equipment which needs to be shielded in order to absorb harmful EMI and RFI. "Metal inks" containing copper, nickel or chromium alloys are EMI coatings which may be sprayed on to virtually any housing or material to create the effect of EMI shielding. Electronic equipment manufacturers and suppliers use EMI enclosures in applications such as circuit board housings, central processing units, laptops and mobile phone housings. With circuit boards, CPUs, laptops and similar devices, most problematic EMI comes from electromagnetic cross-talk within the device. Different components on the same board cause EMI to travel across wires and conductive materials, interfering with one another. EMI coatings may be sprayed onto wire insulation, circuit boards and onto the interior of small enclosures of integrated circuits, diminishing electromagnetic "cross-talk" within devices.

EMI Coating
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