Knitted wire mesh hollow silicone gaskets

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Series

Find the sizes in the dimension table
If you want the gasket with a water seal, then specify the width of the water seal in mm

A knitted wire mesh gasket with a hollow silicone core delivers an excellent EMI/RFI shielding and reliable environmental sealing, thanks to its conductive metal mesh layer and compressible, durable silicone profile. This hybrid design ensures high electromagnetic interference attenuation, flexibility, and resistance to chemicals and high temperatures. The gasket’s hollow silicone profile ensures maximum compression, resilience, and robust environmental sealing in demanding applications.

For high-frequency shielding, foil-based gaskets like Amucor shielding gasket will perform better, because of their much larger contact surface.

Applications

Effective EMI shielding for:

  • Cabinets
  • EMI/RFI shielded windows
  • Enclosures
  • Interface gaskets for EMI shielded vent panels
  • Telecommunications equipment
Temperature resistance

Temperature resistance depends on the core material of the metal knit EMI/RFI gasket; ranges from -60 °C up to 220 °C are possible. These Metal knit EMI/RFI gaskets are insensitive to external influences and can withstand harsh conditions very well.

Knitted wire mesh gasket vs. Amucor shield
Amucor shield contact points Contact points of Amucor shield
Metal knit gasket contact points Contact points of Knitted wire mesh gasket
Shielding performance

1200 - knitted mesh shielding performance

Benefits
  • Combines flexible fit
  • Long-term durability and wear-resistant
  • High attenuation for lower frequencies (low-frequency magnetic shielding)
  • Suitable for use under extreme conditions (military applications)
  • Not susceptible to corrosion
  • Various conductive materials against tension corrosion
  • Roll lengths of 1 to 1000 meters (depending on width and height of the gasket)
  • Tools required: pair of scissors
Knitted wire mesh technical specifications
Material Applications
Monel
Per QQ-N-281
BS 3075 N A 13
Class A
diameter 0.11mm
The most commonly used material.
Insensitive to corrosion and neutral on the galvanic scale.
T.C.S.
Steel core (57%)
Copper cladding (40%)
Tin plating (3%)
diameter 0.11mm		 Excellent magnetic as well as electrical properties, because a Ferro alloy is covered with copper.
The outside is tinned to prevent corrosion.
Aluminium
AMS 4187
BS 1475 5056A
Alloy 5056
diameter 0.16mm
Used in some cases for aluminium enclosures.
Stainless steel
AISI 304
diameter 0.13mm
The strongest material with shielding performance comparable to aluminium. Highly wear-resistant.
In house knitted wire mesh production video

Knitted wire mesh gasket groove gasket gaskets RFI EMI IP water seal Knitted wire mesh EMI/RFI gasket in a groove
Metal knit gasket with water seal gasket gaskets RFI EMI IP water seal heavy duty Knitted wire mesh EMI/RFI gasket combined with water seal
Metal knit gasket water seal gasket gaskets RFI EMI IP water seal Knitted wire mesh EMI/RFI gasket combined with water seal
Stock dimensions

Below are all the standard sizes we keep in stock and so are available quickly. Almost any size and combination can be produced. If you need a size that is not listed below please contact for the options and delivery time.

Round (R)
Knitted wire mesh gasket round hollow
D (mm) or D x d (mm)
3.2 x 1.6 9.5 x 6.4
4.8 x 3.2 11.1 x 8.0
6.4 x 3.2 12.7 x 9.5
8.0 x 4.8 14.9 x 11.1
Round with tail (T)
Knitted wire mesh gasket double round hollow
D x W (mm)
3.2 x 12.7 6.4 x 12.7 9.5 x 15.9
3.2 x 15.9 6.4 x 15.9 9.5 x 19.1
3.2 x 19.1 6.4 x 19.1 9.5 x 25.4
4.8 x 12.7 6.4 x 25.4 12.7 x 19.1
4.8 x 15.9 8.0 x 15.9 12.7 x 25.4
4.8 x 19.1 8.0 x 19.1  
4.8 x 25.4 8.0 x 25.4  
Double round (DR)
Knitted wire mesh gasket double round hollow
D x W (mm)
3.2 x 12.7 6.4 x 12.7 9.5 x 15.9
3.2 x 15.9 6.4 x 15.9 9.5 x 19.1
3.2 x 19.1 6.4 x 19.1 9.5 x 25.4
4.8 x 12.7 6.4 x 25.4  
4.8 x 15.9 8.0 x 15.9  
4.8 x 19.1 8.0 x 19.1  
4.8 x 25.4 8.0 x 25.4  
With water seal/IP seal

All knitted mesh EMI/RFI gaskets can be produced with a water seal/IP seal.

The standard material for the fluid seal/water seal is Neoprene which can be adhesive-backed (indicated in red in the drawings) for easy installation. Alternatively, a silicone sponge is also available.

Knitted wire mesh gasket with waterseal h

Knitted wire mesh gasket round
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