Our range of oriented wire in silicone rubbers combine excellent environmental protection with a high level of shielding effectiveness.
STANDARD PRODUCTS
Oriented wires in silicone range
Our range of oriented wire in silicone rubbers combine excellent environmental protection with a high level of shielding effectiveness. These products incorporate a matrix of vertically oriented wires which pierce both flat faces of the elastomer and provide around 100 contact points per square centimetre.
The materials, which include solid silicone and sponge silicone variants as well as Fluorosilicone, sponge silicone flame retardant, solid silicone flame retardant and solid silicone with either a fluorsosilicone edge or wire free edge options, are produced in sheet or strip form and are usually factory fabricated and diecut into gasket profiles to customers specifications.
Wire-free widths can be ordered where the material cross-section has wires along just one edge, or along both edges with no wires in the centre. This provides a pressure seal and emi shield in one component but reduces the compressive force needed to fit the gasket.
Dual material variants can also provide the advantages of a fluorosilicone gasket with the cost-effectiveness of plain silicone. This is achieved by bonding a wire-free fluorosilicone edge to a standard sheet or strip during the moulding process. Fabrcated gaskets have a wire-free, contaminant resistant outer edge suitable for applications where loose wires could cause problems when gaskets are subjected to solvents or hydrocarbons and are liable to soften & swell.
Please contact us to discuss your precise requirements.
The materials, which include solid silicone and sponge silicone variants as well as Fluorosilicone, sponge silicone flame retardant, solid silicone flame retardant and solid silicone with either a fluorsosilicone edge or wire free edge options, are produced in sheet or strip form and are usually factory fabricated and diecut into gasket profiles to customers specifications.
Wire-free widths can be ordered where the material cross-section has wires along just one edge, or along both edges with no wires in the centre. This provides a pressure seal and emi shield in one component but reduces the compressive force needed to fit the gasket.
Dual material variants can also provide the advantages of a fluorosilicone gasket with the cost-effectiveness of plain silicone. This is achieved by bonding a wire-free fluorosilicone edge to a standard sheet or strip during the moulding process. Fabrcated gaskets have a wire-free, contaminant resistant outer edge suitable for applications where loose wires could cause problems when gaskets are subjected to solvents or hydrocarbons and are liable to soften & swell.
Please contact us to discuss your precise requirements.
Applications
Oriented wires in silicone is probably the most versatile of emi shielding gasket materials. All variants provide good environmental protection and are regularly used where long service life, high performance fixed gaskets are needed. Because of the harder nature of the material, and because it needs a strong closing force through a relatively rigid cover which is screw fixed at regular intervals, they are not generally suitable for doorseals or other applications where a regular opening and closing application applies. The possible exception to this is the sponge silicone variant.
Oriented wires in silicone material is usually supplied in gasket, strip or sheet form with a pressure sensitive adhesive backing which holds the gasket in the absence of a groove or channel. If a groove is available the gasket form is often a jointed ‘o’ ring without the adhesive backing.
Because oriented wire elastomers are wider than they are high, when specifiying the thickness should be stated first as this will be the length of the embedded wires. Then, if the height needs to be greater than the width (i.e. to fit into a groove), there will be no doubt about your actual needs.
Particular care needs to be taken over the design of gaskets to ensure that fixing covers or doors do not distort during compression. It is often necessary to incorporate ‘limit stops’ into the gaskets to prevent over-compression. The material should be compressed by approximately 15% of its relaxed height. Please contact us for technical advice.
Oriented wires in silicone material is usually supplied in gasket, strip or sheet form with a pressure sensitive adhesive backing which holds the gasket in the absence of a groove or channel. If a groove is available the gasket form is often a jointed ‘o’ ring without the adhesive backing.
Because oriented wire elastomers are wider than they are high, when specifiying the thickness should be stated first as this will be the length of the embedded wires. Then, if the height needs to be greater than the width (i.e. to fit into a groove), there will be no doubt about your actual needs.
Particular care needs to be taken over the design of gaskets to ensure that fixing covers or doors do not distort during compression. It is often necessary to incorporate ‘limit stops’ into the gaskets to prevent over-compression. The material should be compressed by approximately 15% of its relaxed height. Please contact us for technical advice.
Find more information, such as our standard sizes etc, in our catalogue.
CATALOGUE
Detailed Information
Specifications
| Solid Silicone Rubber | ZZ-R-765 2b 40 | |
| Sponge Silicone Rubber | AMS 3195 | |
| Fluorosilicone Rubber | Mil-R-25988 Gr 50 | |
| Monel WIre | BS3075 - NA13 | (0.11mm diameter) |
| Aluminium 5056 | AMS 4182 | (0.13mm diameter) |
| Phosphor Bronze | Cu Sn 6% | (0.114mm diameter) |
Temperature range
-55 to 250oC
Performance
| Frequency | Field | TypeSP |
| 10KHz | G | 55 |
| 100KHz | H | 83 |
| 1MHz | H | >100 |
| 1MHz | E | >120 |
| 10MHz | E | >120 |
| 100MHz | E | >120 |
| 400MHz | E | >100 |
| 1GHz | P | 95 |
| 10GHz | P | 85 |
Tolerances
- Thickness up to 1.0mm +0.25mm –0.15mm
- Thickness over 1.0mm ± 0.25mm
- Width tolerance on sheet material ±1.0mm
How to order
Please specify: Shielding Series-Wire Type-Thickness-Width-Adhesive Option
| Shielding Series | Wire Code | Tickness/Width | Finish |
| SP = Solid Silicone | M = Monel | xxxx-xxxx | S/A = Self adhesive |
| SS = Sponge Silicone | A = Aluminium | N/A = No adhesive | |
| SR = Flame Retardant Solid Silicone | P = Phosphor Bronze | ||
| SG = Flame Retardant Sponge Silicone | |||
| SF = Solid Flurosilicone | |||
| SE = Wire Free Edge / Flurosilicone Edge |
Examples / Notes
SP-M-0016-0127-S/A is Solid Silicone with Monel wire 1.6 mm thick x 12.7 mm wide with self-adhesive.
SS-A-0032-1140-N/A is Sponge Silicone with Aluminium wire 3.2 mm thick x 114 mm wide no adhesive.
For strip material not shown, or specific shapes, made up gaskets and for fixing hole positions, please send a drawing and we will allocate a part number with our quotation.
SS-A-0032-1140-N/A is Sponge Silicone with Aluminium wire 3.2 mm thick x 114 mm wide no adhesive.
For strip material not shown, or specific shapes, made up gaskets and for fixing hole positions, please send a drawing and we will allocate a part number with our quotation.
Example sizes
| Thickness mm | Width mm | Part number suffix | Thickness mm | WIdth mm | Part number suffix |
| 0.8 | 76 | -0008-0760 | 1.4 | 3.2 | -0016-0032 |
| 0.8 | 114 | -0008-1140 | 1.6 | 4.8 | -0016-0048 |
| 0.8 | 152 | -0008-1520 | 1.6 | 6.4 | -0016-0064 |
| 0.8 | 228 | -0008-2280 | 1.6 | 9.5 | -0016-0095 |
| 1.1 | 76 | -0011-0760 | 1.6 | 12.7 | -0016-0127 |
| 1.1 | 114 | -0011-1140 | 1.6 | 15.9 | -0016-0159 |
| 1.1 | 152 | -0011-1520 | 2.4 | 3.2 | -0024-0032 |
| 1.1 | 228 | -0011-2280 | 2.4 | 4.8 | -0024-0048 |
| 1.3 | 76 | -0013-0760 | 2.4 | 6.4 | -0024-0064 |
| 1.3 | 114 | -0013-1140 | 2.4 | 9.5 | -0024-0095 |
| 1.3 | 152 | -0013-1520 | 2.4 | 12.7 | -0024-0127 |
| 1.3 | 228 | -0013-2280 | 2.4 | 15.9 | -0024-0159 |
| 1.6 | 76 | -0016-0760 | 3.2 | 3.2 | -0032-0032 |
| 1.6 | 114 | -0016-1140 | 3.2 | 4.8 | -0032-0048 |
| 1.6 | 152 | -0016-1520 | 3.2 | 6.4 | -0032-0064 |
| 1.6 | 228 | -0016-2280 | 3.2 | 9.5 | -0032-0095 |
| 2.4 | 76 | -0024-0760 | 3.2 | 12.7 | -0032-0127 |
| 2.4 | 114 | -0024-1140 | 3.1 | 15.9 | -0032-0159 |
| 2.4 | 152 | -0024-1520 | 4.8 | 4.8 | -0048-0048 |
| 2.4 | 228 | -0024-2280 | 4.8 | 6.4 | -0048-0064 |
| 3.2 | 76 | -0032-0760 | 4.8 | 9.5 | -0048-0095 |
| 3.2 | 114 | -0032-1140 | 4.8 | 12.7 | -0048-0127 |
| 3.2 | 152 | -0032-1520 | 4.8 | 15.9 | -0048-0159 |
| 3.2 | 228 | -0032-2280 | 6.4 | 6.4 | -0064-0064 |
| 4.8 | 76 | -0048-0760 | 6.4 | 9.5 | -0064-0095 |
| 4.8 | 114 | -0048-1140 | 6.4 | 12.7 | -0064-0127 |
| 4.8 | 152 | -0048-1520 | 6.4 | 15.9 | -0064-0159 |
| 4.8 | 228 | -0048-2280 | 6.4 | 19.1 | -0064-0191 |
| 6.4 | 76 | -0064-0760 | 6.4 | 25.4 | -0064-0254 |
| 6.4 | 114 | -0064-1140 | 8.0 | 8.0 | -0080-0080 |
| 6.4 | 152 | -0064-1520 | 8.0 | 9.5 | -0080-0095 |
| 6.4 | 228 | -0064-2280 | 8.0 | 12.7 | -0080-0127 |
| 8.0 | 76 | -0080-0760 | 8.0 | 15.9 | -0080-0159 |
| 8.0 | 114 | -0080-1140 | 8.0 | 19.1 | -0080-0191 |
| 8.0 | 152 | -0080-1520 | 8.0 | 25.4 | -0080-0254 |
| 8.0 | 228 | -0080-2280 | 12.7 | 12.7 | -0127-0127 |
| 9.5 | 76 | -0095-0760 | 12.7 | 15.9 | -0124-0159 |
| 9.5 | 114 | -0095-1140 | 12.7 | 19.1 | -0127-0191 |
| 9.5 | 152 | -0095-1520 | 12.7 | 25.4 | -0124-0254 |
| 9.5 | 228 | -0065-2280 | 15.9 | 15.9 | -0159-0159 |
Please note
- Strip material is available in 915mm nominal lengths and can be factory bonded into longer sections.
- Sheet material is generally 152mm or 228mm nominal widths.
- Minimum thickness 0.8mm depending on material variant – please check before ordering.
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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.
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