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.
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 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.
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
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
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.
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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