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John Castle at Nolato PPT

John Castle


Wire mesh with aluminium frame

These EMI shielding gasket strips and frame materials consist of a slotted aluminium extrusion carrier into which a solid or elastomer cored knitted mesh gasket is clamped. 

These ready-to-fit, semi-rigid gasket profiles help to avoid the problems often encountered when fitting adhesive-backed or plain mesh gaskets.

They can be supplied with dual gaskets, one on either side of the carrier, with one being an EMI shielded mesh gasket and the other an environmental seal. The aluminium extrusion acts as a limit stop, controlling the even compression of the gasket.
Wire Mesh with Aluminium Frame products


Lengths of knitted wire mesh with an aluminium carrier can be used on covers, door frames and other apertures where the surrounding metalwork is either insufficiently rigid or is very heavy duty and needs a robust, well anchored gasket which will not be affected by the stresses and shearing action imposed on conventional twinstrip gasket material.

Knitted wire mesh with aluminium carrier is generally supplied as straight lengths (up to 4m), as welded/jointed frames to suit specific apertures or as mitre cut sections ready to mount around cabinets, doors or hatches. The aluminium carrier is usually drilled and countersunk ready for screws or rivets or, in less stringent conditions, frames can be fixed using a high-bond pressure sensitive adhesive. Welding is possible but not recommended as damage to the knitted wire mesh or elastomer is very difficult to repair.
Wire Mesh with Aluminium Frame products
Find more information, such as our standard sizes etc, in our catalogue.


Detailed information


Monel BS3075 - NA13 (0.11mm diameter)
Aluminium 5056 AMS 4182 (0.13mm diameter)
TCS ASTM B520 (0.11mm diameter)
Stainless Steel Alloy 304 (0.11mm diameter)
Silicone Sponge AMS 3195  
Silicone Solid/Tube ZZ-R-765  
Neoprene Sponge Mil-R-6130  
Neoprene Solid Mil-R-6855  
Aluminium Carrier

BS1474 6063 with Alocrom 1000,
1200 or a RoHS compliant chromate
conversion surface treatment 



Frequency Field Monel Aluminium TCS S/Steel
10KHz H 45 40 60 40
100KHz H 49 45 65 44
1MHz H 60 60 85 58
1MHz E 125 125 125 125
10MHz E 120 120 120 120
100MHz E 100 100 108 100
400MHz P 98 95 99 94
1GHz P 85 76 78 76
10GHz P 80 65 62 60


- Wire meshes – generally ± 0.8mm on diameter, width and height

- Linear measurements on gaskets – up to 300mm ± 0.8mm, up to 1000mm ± 1.5mm

- Sponge and solid elastomers – up to 4.5mm ± 0.4mm, over 4.5mm ± 0.8mm

How to order

Shielding Series Carrier Mesh Portion Elastomer Size/Dimensions of rubber
KM CS1 See knitted cored mesh SS = Silicone Sponge xxxx-xxxx
  CS2 or knitted mesh NS = Neoprene Sponge  
  CS3   ST = Silicone Tube*  
  CS5   * = with ´leg´for twin slot carriers  

Example / Notes

If second gasket/seal on CS6 is not specified, it defaults to being the same as the first material.
If a suffix in brackets is shown after the mesh part number this indicates the number of mesh layers. The default is two (2) layers and does not need to be specified.

KM-CS6-M-10-0064-ST-0064-0048 indicates a base material comprising carrier section CS6 with 6.4 mm diameter Monel mesh fixed to one side and a silicone rubber tube 6.4 mm OD and 4.8mm ID on the opposing side.
KM-CS1-ASS-60-0048 indicates a base carrier section CS1 with an aluminium mesh covered Silicone sponge gasket 4.8 mm diameter on one side only.

For gaskets or strip material not shown, or specific shapes, made up frames and fixing hole positions, please send a drawing and we will allocate a part number with our quotation.

Carrier sizes

Shape Thickness mm Width mm Slots
CS1 3.2 9.5 1
CS2 3.2 12.7 1
CS3 3.2 15.9 1
CS4 3.2 19.1 1
CS6 3.2 12.7 2

Please note

- Avoid mounting any ‘dual’ or ‘twin’ gasket material where two materials are bonded together in a position where the normal process of closing a door or cover exerts a stress or shearing action which creates pressure on the joint between the two materials. If possible, the pressure exerted on any gasket should be directly downwards onto the exposed face of the gasket.

- Aluminium framed EMI shielding gaskets can be supplied as strip material, pre-formed gasket sections or as ready-to-mount finished gaskets.

- Other sizes and profiles are available – please ask!

For any technical queries please contact our sales office.

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How to measure gaskets and o-rings

Gaskets can come in various shapes and sizes. We have put together a guide to help you measure some of the most common shaped gaskets correctly. Please follow the methods to help you successfully measure a gasket.

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