Our Solutions

EMI/RFI Shielding


PNA offers a wide range of EMI/RFI shielding materials. These materials are used to prevent radiation interference from reducing performance of electronic devices.
These EMI/RFI gaskets have outstanding physical properties, including wide-operating temperatures, high chemical, fuel and solvent resistance and a long life for critical applications.
Our EMI gaskets and seals create a conductive path through seams and other openings in an electronic enclosure. These gaskets block electrical differences across the shield surface and establish a smooth current flow. Additionally, our gasketing materials will ensure environmental protection as well as vibration resistance. EMI/RFI gaskets are fabricated to the customers’ dimensions.

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01 —  OUR SOLUTIONS · EMI / RFI SHIELDING

EMI/RFI shielding gaskets,
converted to print.

Conductive elastomer gaskets that create a continuous low-impedance path across every seam and opening in an electronic enclosure — blocking electromagnetic and radio-frequency interference while maintaining a full environmental seal. Cut to your dimensions on our Zünd digital floor, with the fill, base elastomer, and tolerance your program demands.

ISO 9001:2015  ·  ITAR Registered  ·  MIL-DTL-83528  ·  Made in USA

100 + dB

Shielding effectiveness
to 10 GHz

6 FILLS

Conductive particle
systems stocked

±0.005 IN

Standard dimensional
tolerance

24 HR

Quote turnaround
on EMI gaskets

Engineered
shielding stack

Standard
MIL-DTL-83528
Shielding
100+ dB · to 18 GHz
Fills
6 conductive systems
Tolerance
±0.005″ std · ±0.002″ tight
Turnaround
24-hour quote · no minimum
02  How shielding works

Shield and seal,
in a single gasket.

EMI/RFI materials prevent radiated interference from degrading the performance of electronic devices. PNA’s gaskets carry that shielding function and a robust environmental seal in one converted part.

Interference doesn’t respect enclosure walls — it escapes through the gaps between them.

Our EMI gaskets and seals establish a conductive path through seams and other openings in an electronic enclosure. They equalize electrical potential across the shield surface and route induced currents smoothly to ground, closing the apertures that would otherwise radiate or admit interference.

These gaskets carry outstanding physical properties — wide operating temperatures, high chemical, fuel, and solvent resistance, and a long service life for critical applications — while adding environmental protection and vibration resistance to every joint.

01

Continuous conductive path

Conductive fillers bridge mating surfaces across seams and apertures, eliminating slot antennas and leakage paths that radiate interference.

02

Environmental seal in one part

The same elastomer that shields also seals — blocking moisture, dust, and pressure differentials to MIL-grade ingress requirements.

03

Vibration & shock resilience

High resiliency and low compression set hold shielding contact under the vibration, thermal cycling, and shock of battle-harsh service.

04

Fabricated to your dimensions

Die-free Zünd cutting converts sheet, molded, and extruded stock to exact print geometry — prototype through production, no tooling cost.

03  Conductive fills

The right filler
for the joint.

Shielding performance, weight, and galvanic compatibility all trace back to the conductive particle system. We stock the full range across silicone and fluorosilicone binders — the material your drawing specifies is the material we convert.

Conductive fillBase elastomerShielding eff.Typical use
Silver / Aluminum
Ag-Al · MIL-DTL-83528 Type A
Silicone or fluorosilicone binder110 dB to 10 GHzWorkhorse fill for general defense electronics — best balance of shielding, cost, and weight.
Silver / Copper
Ag-Cu · Type C
Silicone binder120 dB to 10 GHzHighest volume conductivity for demanding RF and high-frequency shielding.
Silver / Glass
Ag-Glass · Type B
Silicone binder105 dB to 10 GHzLightweight option where mass is critical — airborne and space avionics.
Nickel / Graphite
Ni-Gr · Type M
Silicone or fluorosilicone90 dB to 10 GHzCost-effective, corrosion-resistant fill for commercial and galvanic-sensitive joints.
Silver / Nickel
Ag-Ni
Silicone binder110 dB to 10 GHzStrong shielding with improved galvanic compatibility against aluminum housings.
Pure Silver
Ag
Silicone binder120 dB to 18 GHzMaximum performance for the most stringent RF and microwave enclosures.

Shielding effectiveness values are representative of conductive elastomer systems per modified MIL-DTL-83528 test method and vary with frequency, joint design, and compression. Send your specification — we’ll confirm the fill and performance against your enclosure.

04  Product forms

Every gasket form,
one supplier.

From flat die-cut windows to molded connector seals and dispensed beads — we convert EMI shielding into the form your enclosure was designed around.

01 / 04

Die-cut & converted

Conductive sheet stock converted to flat gaskets, flange profiles, and EMI windows on our Zünd digital cutter. No die cost, rapid revisions, tight nesting for material yield.

Method
Zünd knife · kiss · score

02 / 04

Molded shapes

Custom cross-sections — O, D, P, rectangular, and hollow profiles — molded in conductive silicone or fluorosilicone for connector seals and enclosure perimeters.

Profiles
O · D · P · custom

03 / 04

Extruded profiles

Continuous conductive extrusions cut and spliced into gasket frames for cabinet doors, shelters, and large enclosure perimeters where molding is impractical.

Splice
Vulcanized corners

04 / 04

Form-in-place (FIP)

Dispensed conductive bead applied directly to complex 3D housings — ideal for cast aluminum enclosures with tight real estate and intricate geometry.

Bead
Robotic dispense
05  Specifications & standards

Performance,
to MIL-SPEC.

Published capability across EMI/RFI conductive elastomer gaskets. Shielding effectiveness, resistivity, and environmental performance trace to MIL-DTL-83528 and are verified against your joint design and frequency band.

Outside these ranges?

We regularly deliver
custom shielding
beyond standard spec.

Send your print and frequency requirement. If we can convert it, we’ll quote it.

Governing specMIL-DTL-83528 (Types A–M)
Shielding effectivenessUp to 120 dB · plane wave to 10 GHz
Conductive fillsAg-Al · Ag-Cu · Ag-Glass · Ni-Gr · Ag-Ni · Ag
Base elastomersSilicone (VMQ) · Fluorosilicone (FVMQ)
Volume resistivity0.001 – 0.1 Ω·cm (fill dependent)
Durometer range45 – 85 Shore A
Operating temperature−55 °C to +160 °C
Material thickness0.016″ – 0.250″
Standard tolerance±0.005″ · tight ±0.002″ on features
Cutting methodsThrough · kiss · score · perf
Accepted formatsDXF · DWG · STEP · IGES · PDF · AI
DocumentationCoC · Material cert · FAIR · PPAP
06  Applications

Where our shielding
ships.

PNA EMI gaskets seal and shield enclosures across programs where signal integrity and survivability are not optional — from battle-harsh defense electronics to commercial 5G infrastructure.

Defense Electronics

01 / 06

Defense Electronics

Aerospace

02 / 06

Aerospace & Avionics

03 / 06

Space & Satellite

Uncrewed systems

04 / 06

Uncrewed Systems

05 / 06

EV & Automotive

06 / 06

Telecom & 5G

07  Why PNA

Proficiencies
& performance.

Deep engineering capability, materials in stock, and a quality system built around defense and aerospace compliance from day one.

Field proven

Thousands of designs integrated into battle-harsh and commercially challenging environments — shielding that holds up where it counts.

Proven track record

Orders delivered on time and to specification, from initial production design through full-scale production runs.

Continuous improvement

Driven to maintain a zero-return rate. Every lot is inspection-closed before it leaves the floor.

Deep engineering

Expert knowledge of EMI/RFI specifications, collaborating from project concept through completion.

08  Related solutions

More from the
PNA capability set.

EMI shielding is one family on a single CAD-driven production floor. Explore the rest of what we convert.

o-rings.jpg

01 / 06

Electrically conductive elastomer O-rings for EMI shielding in threaded and flanged enclosures.

Thermal Gap pad

02 / 06

Gap pads, phase-change, and adhesive TIMs that dissipate heat and conform to uneven surfaces.

Elastomer-Gaskets.png

03 / 06

Conductive elastomer flange gaskets for avionics LRU sealing, radar modules, and enclosure joints.

gaskets.webp

04 / 06

High-performance environmental gaskets converted from silicone, EPDM, Viton, and neoprene grades.

05 / 06

Dielectric components cut from Nomex, Mylar, and Kapton for battery packs and HV enclosures.

06 / 06

Tier-one stocking relationships across the leading EMI, thermal, and sealing material manufacturers.

09  Next steps

Send us your EMI
drawing. Quotes in 24 hours.

Include quantity, conductive fill (or shielding requirement), tolerance, and target delivery date. We’ll respond within 24 business hours with feasibility, lead time, and price.

DXF · DWG · STEP · IGES · PDF · AI