Home Products MaxshieldAluweave Conductive Gaskets

Aluweave Conductive Gaskets | GA EMI Shielding

Specifications

Aluminium mesh	AMS 4182A
Silicone Rubber	AMS 3220B
Fluorosilicone	MIL-R-25988
Neoprene	AMS 3222C

Temperature range

Silicone	- 55 to + 250^oC
Neoprene	- 40 to +107^oC

Material Data Sheets

Performance

Frequency	Field	Attenuation
10 KHz	H	45
100 KHz	H	55
1 MHz	H	70
1 MHz	E	>100
10 MHz	E	>100
100 MHz	E	>100
400 MHz	P	100
1 GHz	P	69
10 GHz	P	50

How to order

Specify: Series-Filler Code-Thickness-Size or drawing number

Shielding Series	Filler Code	Thickness	Size
GA=Aluweave	SX=Silicone	0004=0.4 mm	xxxx-xxxx
	SF=Fluorosilicone	0005=0.5 mm
	NX=Neoprene

Examples / Notes

Example:: GA-SX-0004-Drawing No, specifies a cut gasket fabricated from 0.4 mm thick Silicone Aluweave

General Information

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 gaskets are unsuitable but, because it is woven, it is unsuitable for 'landwidths' of less than 3mm for diecut gaskets. Surface irregularities should not exceed 0.05mm. This material is available in two thicknesses – 0.4mm and 0.5mm ± 0.1mm – and is generally supplied as pre-cut gaskets constructed to the customers specific requirements but can also be supplied in sheets. Connector gaskets in DC Shielding include Aluweave materials.

Applications

Aluweave 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 GX Shielding 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 utilising the fixing screws to position the gasket before tightening.