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Electronics Gaskets, EMI Shielding, and Insulators

Cannon Gasket die-cuts materials from 0.001 inch film to 0.5 inch conductive foam under ISO 9001 systems with PSA backing and clean-room assembly. Send enclosure drawings, attenuation targets, and volume for material options, tooling cost, piece pricing, and lead time.

Quick facts about Electronics
  1. Serving telecommunications, computing, consumer-electronics, and industrial-controls OEMs across prototype to high-volume runs.
  2. Used for EMI/RFI enclosure gaskets, display and LCD bezels, board-level shielding, insulation washers, dielectric films, and flex-circuit insulators.
  3. Fabricated from conductive silicone, metal mesh, fabric-over-foam, Mylar, Kapton, G-10 fiberglass, and Nomex paper stock.

Request a quote for Electronics projects.

We respond within one business day. For urgent inquiries call 909.355.1547

Sealing components for electronics

Electronics enclosures and assemblies need a coordinated mix of mechanical sealing, EMI/RFI shielding, thermal management, and electrical insulation. Cannon Gasket supplies custom electronics components, including gaskets, shielding seals, thermal pads, and insulator washers, to OEMs in telecom, semiconductor, defense electronics, medical electronics, and consumer hardware.

Where electronics sealing shows up

  • EMI/RFI enclosure gaskets
  • Display and LCD gaskets
  • Board-level shielding
  • Electrical insulation washers
  • Thin dielectric films
  • Flexible circuit insulators

Sealing and Shielding Applications

Electronics work spans several sealing jobs at once. EMI/RFI shielding gaskets use conductive silicone, wire-mesh elastomer, and conductive fluorosilicone to meet FCC, CE, and MIL-STD compliance, while conductive form-in-place gaskets handle board-level shielding. Thermal interface pads built from conductive elastomers and thermal management materials carry heat between components and heat sinks. Electrical isolation comes from insulator washers in Kapton, phenolic, G-10/FR-4, Nomex, and fibre. For environmental sealing of enclosures, silicone, EPDM, and neoprene provide the mechanical seal that keeps moisture and contaminants out.

Materials We Supply for Electronics

Cannon stocks the conductive and dielectric materials that electronics assemblies depend on. Shielding parts come from conductive silicone, conductive fluorosilicone, and wire-mesh-in-elastomer. Insulation and dielectric parts come from Kapton (HN, FN, and CR grades), Mylar, Nomex (410 and variants), phenolic (G-10, FR-4, X, XX, and XXX), and fibre. For mechanical sealing we supply silicone, neoprene, and EPDM, and for thermal management we supply Interface® thermal management materials. Choosing among these depends on attenuation targets, operating temperature, and the dielectric strength the design calls for.

Production and Quality

Cannon runs Class 10,000 (ISO 7) clean room production for semiconductor and medical electronics, with ESD-aware handling for sensitive components. Pad printing adds orientation marks and part numbers directly to parts where assembly requires them. Tooling is matched to the part. Compound die cutting holds tight ID/OD on shielding gaskets, while flash cutting and rotary die cutting handle thin-gauge film washers. All of this runs under ISO 9001 certified systems.

Frequently Asked Questions

Questions from electronics buyers.

Are you ISO 9001 certified?
Yes, ISO 9001:2015 certified. Documented quality management covers incoming material verification, in-process inspection, calibrated measurement, final inspection, non-conformance handling, corrective action, and full lot traceability. AS9100-ready for aerospace, with MIL-spec and FDA 21 CFR 177.2600 / USP Class VI grades available on request.
Do you make EMI shielding gaskets?
Yes. Conductive elastomer, knitted wire mesh, conductive foam, and fabric-over-foam products die-cut to your enclosure profile. See /emirfi-materials/ for the full program.
Do you serve general industrial OEMs?
Yes. Automotive, Electronics, Industrial Controls, HVAC, Plumbing, Irrigation, Pool & Spa, and Marine programs all run custom gaskets and washers through our Fontana facility. JIT, VMI, and Kanban replenishment available on ongoing programs.
What materials are used for electrical insulation?
Kapton polyimide film, G-10 fiberglass, Lexan polycarbonate, Nomex paper, and PTFE all have high dielectric strength. Standard in transformer, motor, relay, and PCB-level applications.
Which regulated industries do you serve?
Aerospace (AS9100-ready), Medical & FDA (ISO 7 clean room, USP Class VI), Food & Beverage (FDA 21 CFR 177.2600), Oil & Gas (chemical-resistant elastomers), and Defense (US-based production, MIL-spec compounds).
How fast do you return a quote?
Most RFQs come back within one business day. Simple profile updates to an existing tool quote same-day. Send a drawing, DXF, or competing part number and our engineering team reviews material, tolerance, and volume before pricing.
What is the minimum order quantity?
Minimums depend on the part and material. We cut prototype and first-article quantities for engineering evaluation, then scale up to production volumes from the same tooling. For high-volume programs we run JIT, VMI, and Kanban replenishment out of Fontana, California.
What should I send with an RFQ?
Ideal: a drawing or DXF, material spec (or compound family), estimated annual volume, and any regulatory callouts (FDA, USP Class VI, AS9100, MIL-spec). If you only have a sample or a part number from a competing supplier, send that and we will reverse-engineer the spec before quoting.
What are typical lead times?
Prototype and first-article parts usually ship in 5-10 business days. Production runs from existing tooling are 2-3 weeks depending on volume and material lead time. Rush and expedite options available on a case-by-case basis.
Ready to source electronics components from Cannon Gasket?
Send your specifications. We'll come back with pricing, tooling cost, and lead time.
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