Knitted Mesh Gaskets Product Profile — EMI/RFI/EMP Shielding & Sealing Components Shielding & Sealing Solutions for Demanding Applications 1. Product Overview Knitted mesh gaskets (also known as knitted wire mesh gaskets) are EMI/RFI shielding and sealing components manufactured by continuously knitting fine metal wire into a mono-filament interlocking loop structure. The interlocking loops give the gasket high strength and resilience while allowing it to conform to almost any size or shape. Solid all-metal gaskets, compressed profiles, and gaskets knitted over elastomer cores are available. They provide a cost-effective, high-performance shielding solution between two metallic surfaces in electrical and magnetic fields, covering EMI, RFI and EMP applications. The product family covers two main categories: electromagnetic shielding gaskets (EMI/RFI) and compressed knitted mesh gaskets for high-temperature mechanical and thermal sealing duties, such as exhaust seal rings and gland seals. 2. Construction & Structure ● Mono-filament interlocking loop construction — high strength, flexible, conforms to almost any size or shape ● Optional elastomer core (neoprene/silicone sponge or silicone tubing) to aid compression and reduce compression force ● Available solid or hollow, multi-stranded, multi-layered and crimped ● Continuous knitted strips from 0.062″ to 30″ wide, or cut-to-size gaskets ● Standard cross sections: Round, Rectangular, Single Fin, Double Round 3. Materials Any ductile material that can be drawn into wire can be knitted. Typical wire diameters range from 0.0035″ to 0.011″ (0.089–0.28 mm); compressed gaskets commonly use 0.11–0.13 mm wire. Special diameters are available on request.

Material	Description	Typical Use
Monel	Nickel-copper alloy with good electrical performance and excellent corrosion resistance	High-performance shielding, harsh environments
Tin-plated Copper-clad Steel (SnCuFe)	1005-1010 steel wire with copper outer cladding and tin-plated exterior; excellent electrical properties and broadband attenuation	Best shielding performance, most widely used in industry
Aluminum 5056	Lightweight with good electrical performance; useful where galvanic corrosion is a concern	Lightweight equipment, dissimilar-metal matching
Stainless Steel (304)	Good electrical performance, high strength, corrosion resistant	General-purpose shielding and sealing
Nickel	High temperature and corrosion resistance	High-temperature and corrosive environments
Brass	Good conductivity at moderate cost	General shielding applications

4. Key Features & Benefits ● Excellent EMI/RFI/EMP shielding performance (high attenuation) ● Compressible with a high degree of resilience — spring-like recovery ● Extreme temperature range and suitability for harsh environments (corrosion, vibration) ● Good galvanic match with mating flanges, minimizing corrosion between gasket and flange ● Wide choice of materials, wire diameters, mesh densities and profiles ● Custom shapes, sizes and densities available (ring, strip, rectangular, circular, etc.) ● Ease of installation and field replacement; cost-effective ● Multiple layers / elastomer cores reduce compression loading and improve sealing 5. Technical Specifications

Parameter	Typical Value
Wire diameter	0.0035″–0.011″ (0.089–0.28 mm); compressed gaskets commonly 0.11–0.13 mm; special sizes on request
Continuous width	0.062″–30″ (1.6–762 mm)
Standard cross-section (H × W)	0.062″ × 0.062″ up to 0.250″ × 1.25″
Temperature range	All-metal type: determined by material (stainless steel/Monel withstand high temperatures); with elastomer core: typically -50 °C to +200 °C (silicone cores can be higher)
Shielding type	EMI / RFI / EMP (magnetic and electric fields)
Corrosion resistance	Good to excellent, depending on material
Water sealing	Not water-tight; provides limited dust sealing
Compression set	Solid all-metal mesh exhibits compression set — not recommended for frequent panel opening; elastomer core improves recovery
Mounting	Mechanical fasteners, press-fit into groove/return flange, conductive adhesive bonding

Note: Shielding attenuation values (dB) depend on material, wire diameter, mesh density and test frequency; verify with samples for specific applications. 6. Standard Cross Sections

All Mesh Round	All Mesh Rectangular	Single Fin	Double Round
Solid knitted round profile for general installation	Solid knitted rectangular profile for rectangular grooves	Profile with a single fin, used with retention bar / compression stop	Double round profile for enhanced contact and sealing

Cross sections are combinable with all standard materials and optional elastomer cores. 7. Standard Sizes — Data Sheet Standard strip dimensions (height × width, inches). Non-standard sizes, materials and combinations are available on request.

Height (in)	Available Width (in)
0.062	0.062, 0.125, 0.187, 0.250, 0.312, 0.375, 0.500, 0.625, 0.750
0.093	0.093, 0.125, 0.187, 0.250, 0.312, 0.375, 0.500, 0.625, 0.750
0.125	0.125, 0.156, 0.187, 0.250, 0.312, 0.375, 0.500, 0.625, 0.750
0.156	0.156, 0.250, 0.312, 0.375, 0.500, 0.750, 1.00
0.187	0.187, 0.250, 0.312, 0.375, 0.500, 0.750, 1.00
0.250	0.250, 0.312, 0.375, 0.500, 0.750, 1.00, 1.25

Compressed gasket shapes: ring, circular, stripe, rectangular — or fully custom profiles. 8. Mounting & Installation ● Mechanical fasteners (screws, clips, retention bars) ● Press-fit into a groove or return flange on sheet-metal enclosures ● Bonded in place with conductive adhesive ● Single-fin gasket with retention bar / compression stop ● Round strip between tongue and groove 9. Design Considerations ● Cut ends may show loose wires — dip in glue, spot weld, or sew the cut end ● Sufficient compression force is required for good metal-to-metal contact ● Choose wire type for galvanic compatibility with mating metalwork ● Not water-tight; offers limited dust sealing ● Solid all-metal mesh suffers compression set — avoid frequent panel opening; use elastomer core where needed 10. Applications

Industry	Typical Applications
Electronics & Telecom	Enclosure lid and door gaskets, removable cover plates, EMI vent panels and shielded window interfaces, connector gaskets
Appliances	Microwave oven door seals (EMI shielding)
Industrial Equipment	Magnetron seals, gland rings, grounding buttons
Aerospace & Defense	Radar, avionics, military electronic enclosures, aircraft/missile electronics bays
Automotive	Electronic control units (ECU), sensor and e-drive system shielding, exhaust seal rings
Security & Surveillance	CCTV cameras, waveguide seals
Energy & Power	Inverters, converters, energy storage system shielding
Medical Equipment	EMC shielding for infusion pumps, patient monitors and other medical devices

11. Customization & Ordering ● Materials: stainless steel, Monel, aluminum, tin-plated copper-clad steel, nickel, brass, etc. ● Dimensions: continuous strips, cut-to-length gaskets, rings and custom profiles ● Wire diameter, mesh density, number of layers and crimping can be adjusted ● Elastomer cores to meet temperature range, compression set and compression force requirements References: Metal Textiles (Metex) Knitted Wire Mesh Gaskets Data Sheet; TE Connectivity (Kemtron) Knitted Wire Mesh; Boegger Industech Compressed Knitted Mesh Gasket; RS Components product data.