Aluweave is a versatile, highly conductive gasket medium produced by filing a woven aluminium mesh with either silicone, fluorosilicone or neoprene rubber. It is particularly useful where thicker EMI shielded gaskets are unsuitable but, because it is woven, it is not viable for ‘landwidths’ of less than 3mm for diecut gaskets. Surface irregularities should not exceed 0.05mm. This material is generally supplied as pre-cut gaskets constructed to the customers specific requirements but can also be supplied in sheets. Our range of EMI Shielded connector gaskets include Aluweave materials.
Standard products
Woven aluminium mesh-Aluweave
Aluweave is a versatile, highly conductive gasket medium produced by filing a woven aluminium mesh with either silicone, fluorosilicone or neoprene rubber.
Applications
Aluweave filled aluminium mesh is used for EMI connector gaskets and other ‘thin’ EMI gasket applications. If aluminium is unsuitable because of galvanic compatibility or shielding effectiveness, the expanded Monel based Monex may be more appropriate.
Aluweave gaskets provide good ‘point contact’ where each crossover occurs, while the rubber filler ensures excellent environmental sealing. Aluweave, like nearly all other conductive gasket materials, should not be fixed with a conductive or pressure sensitive adhesive and should be fixed as a friction fit utilizing the fixing screws to position the gasket before tightening.
Detailed information
Specifications
| Aluminium Mesh | AMS 4182A |
|---|---|
| Silicone Rubber | AMS 3220B |
| Fluorosilicone | MIL-R-25988 |
| Neoprene | AMS 3222C |
Temperature range
| Silicone | -55 to +250oC |
|---|---|
| Neoprene | -40 to +107oC |
Performance
| Frequency | Field | Attenuation |
|---|---|---|
| 10KHz | H | 45 |
| 100KHz | H | 55 |
| 1MHz | H | 70 |
| 1MHz | E | >100 |
| 10MHz | E | >100 |
| 100MHz | E | >100 |
| 400MHz | P | 100 |
| 1GHz | P | 69 |
| 10GHZ | P | 50 |
How to order
Specify: Shielding Series-Filler Code-Thickness-Size or drawing number
| Shielding Series | Filler Code | Thickness | Size |
|---|---|---|---|
| GA = Aluweave | SX = Silicone | 0005 = 0.5mm | xxxx-xxxx |
| SF = Fluorosilicone | |||
| NX = Neoprene |
Examples/Notes
GA-SX-0005-Drawing No, specifies a cut gasket fabricated from 0.5 mm thick Silicone Aluweave Woven Aluminium Mesh.
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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.
How to measure gaskets and o-rings