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Gaskets· Cannon Gasket

RFI / EMI Shielding Gaskets

Precision die-cut rfi / emi shielding components. ISO 9001 certified. Fontana, CA since 1971.
Custom RFI / EMI shielding gaskets in conductive elastomers, wire mesh, and metal-filled silicone for electronics chassis sealing and shielding.

Key Properties

  • Thickness: 0.010" – 0.250"
  • High electrical conductivity
  • Effective EMI/RFI shielding
  • Environmental sealing
  • Conductive elastomer & fabric grades

Why specify RFI / EMI Shielding for gaskets?

When an electronic enclosure must seal mechanically and contain electromagnetic interference, an RFI / EMI shielding gasket does both. Cannon Gasket cuts custom EMI shielding gaskets in a range of conductive elastomers, wire mesh composites, and metal-filled silicone formulations.

Properties of RFI / EMI Shielding gaskets

Cannon Gasket cuts RFI / EMI Shielding gaskets to your drawing in durometer and thickness specifications of 0.010" to 0.250" thickness. Grade-dependent. Most conductive elastomers provide good moisture resistance and moderate chemical resistance alongside their primary shielding function.

RFI / EMI Shielding tolerances and customization

Standard dimensional tolerances on RFI / EMI Shielding gasketsland around ±0.010" to ±0.015" on OD and ID, depending on material durometer and thickness. Tighter tolerances are available on select grades. Cannon Gasket cuts RFI / EMI Shielding to custom profiles in-house and matches lead times to your production volume. PSA backing, pad printing, custom packaging, and kitting are all on the menu when you need them.

Material Families

- Conductive silicone — silver-, copper-, or nickel-filled silicone for shielding plus environmental sealing. - Conductive fluorosilicone — for fuel and chemical environments combined with EMI shielding. - Wire mesh in elastomer — for mechanical seal plus high-attenuation shielding. - Metal-mesh-only gaskets — for pure shielding without environmental sealing.

How EMI Gaskets Perform

- Shielding effectiveness from 60 dB to 120 dB across MHz to GHz frequencies, material dependent. - Environmental sealing on conductive elastomer grades. - Custom durometers and conductivity levels matched to the chassis. - Class 10,000 clean room production for sensitive electronic and semiconductor work.

Where EMI Shielding Gaskets Are Specified

Server racks and chassis, telecommunications enclosures, defense and aerospace electronics, medical imaging systems, semiconductor process tools, and any electronics enclosure with FCC, CE, or MIL-STD EMC compliance requirements.

Conductive Silicone vs Fluorosilicone

When the enclosure sees fuel, oil, or aggressive chemical exposure alongside the EMI requirement, fluorosilicone is the material. For air and indoor environments, silicone is more economical with equivalent shielding.

Cutting Methods

Flash cutting, compound die cutting, and rotary die cutting. Pad printing for orientation marks and part numbers on assembly-line installation.

Applications

  • Electronic enclosures
  • Telecommunications equipment
  • Aerospace avionics
  • Military communications
  • Medical electronics
  • Industrial control panels

Industries Served

  • Electronics
  • Telecommunications
  • Aerospace
  • Military / Defense
  • Medical
  • Industrial

Manufacturing Capabilities

  • Precision die cutting
  • Custom shapes & profiles
  • In-house tooling
  • PSA backing available
  • Prototype to production
  • ISO 9001 certified
Request a Quote from Cannon Gasket
Custom RFI / EMI Shielding gaskets die-cut to your drawing. Prototype to high-volume production. ISO 9001 quality system with MIL-spec, FDA, and USP Class VI grades available.
Cannon Gasket, Inc.7784 Edison Ave, Fontana, CA 92336
909.355.1547
sales@cannongasket.com
https://cannongasket.com/gaskets/rfi-emi-shielding-gaskets/
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