Standard products

Elastomer cored knitted wire mesh

Our elastomer cored knitted wire meshes consist of two layers of knitted wire over a low-closing-force rubber or elastomer core and offer the same EMI shielding effectiveness of all-mesh types.

In some cases a single knitted wire mesh layer will be sufficient but in extreme cases, such as EMP, up to seven layers of knitted TCS will be used. Cored knitted mesh is sometimes combined with an environmental seal to provide IP ratings of 65 or above, depending on the materials used and the suitability of the mating surfaces (see Knitted wire mesh with environmental seal).

The elastomer core materials are usually sponges (neoprene, silicone, EPDM or PU) although for many applications a silicone or neoprene tube can be specified.

Applications

In comparison with ‘solid’ mesh types, elastomer cored knitted wire meshes have a high degree of recovery so they are more suitable for use on doors and covers that are regularly opened and closed. The closing pressure is much lower and a good EMI shield is formed even where there are minor surface irregularities. Gaskets made from knitted wire mesh over an elastomer core will also provide limited environmental sealing, particularly against dust. Where there are hazardous conditions flurosilicone or other special formulations can be specified to meet your requirements.

Elastomer cored knitted wire mesh gaskets can either be retained in a groove or channel or fixed with adhesive (the wire contact points can penetrate a thin film). To facilitate clamping or riveting, ’round-with-tail’ and ‘double-round-with-tail’ sections are available. Many variants are available with a pressure sensitive adhesive backing applied across part of one face for easy fitting. Alternative fixing methods use tandem or ‘Twinstrip’ environmental seals or round-with-tail mesh pre-fitted into aluminium mounting frames, which can be pre-drilled for easy fitting.

Catalogue

Find more information, such as our standard sizes etc, in our catalogue.

Download

Detailed information

Specifications

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 Solid/Tube	Mil-R-6855

Performance

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

Tolerances

General – +/- 0.8mm on all dimensions.

How to order

Shielding Series	Wire Code	Elastomer	Style	Size
KE	M = Monel	SS = Silicone Sponge	60 = Round	xxxx-xxxx
	A = Aluminium	ST = Silicone Tube	70 = Rectangular
	T = TCS	NS = Neoprene Sponge	80 = Round with tail
	S = Stainless Steel	NT = Neoprene Tube	90 = Double round with tail
		SX = Solid Silicone
		NX = Solid Neoprene
		PU = Polyurethane Foam

Example / Notes

Notes:
Suffix #1= number of layers. E.g. (1) indicates one layer, default is 2 layers
S/A = Self adhesive
N/A = No adhesive
Adhesive cannot be used on more than one layer

Examples:
KE-MST-60-0024 is 2.4 mm diameter round 2 x Monel layer over silicone tube
KE-ANS-70-0032-0095-(1) S/A is 3.2 x 9.5 mm rectangular neoprene sponge with 1 x Aluminium mesh layers and PSA backing

Our standard sizes

Click here for all our standard sizes.

Please note

- The dimensions quoted are those of the elastomer core, allowance should be made for the knitted wire mesh thickness (approx. 0.4mm for 2 layers)

- Knitted meshes are available in continuous lengths, cut pieces or as fabricated gaskets

- Compressed mesh gasket forms, o-rings and gland seals can be produced to customers specifications

- The above are examples of standard profiles & sizes that we offer – other sizes are available – please ask!

For details of fixing methods or any technical queries please contact our sales office.

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Many of our clients require bespoke made products. If you'd like to discuss a product, please do give us a call and speak to us about your requirements.

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.

How to measure gaskets and o-rings

Contact us

Contact person

Nick Cameron

Elastomer cored knitted wire mesh

Applications