Beryllium Copper Finger Stock
Beryllium copper EMI gaskets have superior mechanical spring characteristics and high electrical conductivity making them ideally suited to shielding application where frequent access is required such as shielded room doors.
These are available in profiles to suit most EMI shielding applications including grounding.
Many plating finishes are available to address galvanic compatibility concerns and enhance shielding performance.
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Form in Place Gaskets
Conductive or non conductive elastomer silicone compounds are deposited as a gasket directly to the enclosure by XYZ CNC technology.
These gaskets can be very intricate small sections suitable for enclosures with no space for a traditional gasket such as thin walled multi compartment housings providing an EMI and environmental seal.
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We have tooling for a wide range of standard connector gaskets. Different materials are available to meet the demands of EMI shielding, environmental sealing, galvanic compatibility and fuel/oil resistance.
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Woven & Expanded Wire in Elastomers
Woven aluminium wire or expanded monel or aluminium sheet impregnated with silicone, fluorosilicone or synthetic rubber. Provides an excellent EMI and environmental seal, the metal reinforcement eliminates cold flow due to over compression. Available as sheet or die cut gaskets, particularly suitable for connector gaskets.
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Electrically conductive elastomers are made from silicone or fluorosilicone loaded with highly conductive particles such as silver plated aluminium, silver plated copper, nickel coated graphite and pure nickel. Available as extruded profiles, “O” rings, moulded components, and flat sheet for die cut gaskets.
Conductive elastomers offer an excellent temperature range and are resistance to compression set and fluorosilicone has superior resistance to fuel oils and solvents.
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Conductive Fabric over Foam Gaskets
Highly conductive nickel/copper or silver plated polyester or nylon fabric over an open celled urethane core. Many profiles are available including rectangular, D shape and low compression/deflection C shape seals. These provide an excellent EMI gasket with low compression set and excellent abrasion resistance for high cycling and wiping applications. Most meet UL94V-0 and are available as strips, cut to length or die cut.
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Oriented Wires in Silicone
Solid and sponge silicone populated with vertically oriented monel or aluminium wires up to 140/sq cm. Provides excellent shielding with EMP survivability and will also provide an environmental seal. Available as sheet stock, strip or die cut to customer design and can be easily fabricated for large picture frame gaskets. Also available with self adhesive backing and compression stops or collars can be fitted to prevent over compression.
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Knitted Wire Mesh
Knitted wire mesh gaskets provide an excellent cost effective EMI gasket, providing shielding in the magnetic as well as electric fields. Availiable in four wire types, monel, stainless steel, aluminium and tin plated copper clad steel. Knitted mesh gaskets can be supplied as solid mesh or knitted over elastomeric cores with or without environmental seal in continuous lengths or fabricated to custom designs.
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