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John Castle at Nolato PPT

John Castle

STANDARD PRODUCTS

Expanded monel foil - Monex

Monex is an expanded Monel foil filled with silicone rubber. The exposed foil surface provides excellent conductivity combined with good corrosion resistance.

Monex is an expanded Monel foil filled with silicone rubber. The exposed foil surface provides excellent conductivity combined with good corrosion resistance. Monex is also a ‘thin’ gasket medium, similar to Aluweave woven aluminium mesh, and is particularly suitable for connector or waveguide gaskets where a pressure seal and EMI shield is required. The material cannot be effectively joined so gaskets should be cut in one piece wherever possible. Thicknesses of 0.5mm and 0.75mm are available and it can be supplied in sheet form.

To retain the strength of the expanded Monel foil, we recommend that a minimum land-width of 3mm should remain at any point around the edge of a Monex gasket. We also suggest that gaskets with intricate outlines are die-cut at the factory.
Expanded monel foil-monex products

Applications

Like Aluweave, Monex expanded Monel foil is used for connector gaskets and other ‘thin’ gasket applications. Mating surfaces should ideally be within ± .01mm. Where hermetic sealing is not necessary, Monex – NF is available without the silicone filler.

Monex gaskets provide good ‘point contact’, while the rubber filler ensures excellent environmental sealing. Monex, 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.
Expanded monel foil-monex products
Find more information, such as our standard sizes etc, in our catalogue.

CATALOGUE

Detailed information

Specifications

Monel Foil QQ-N-281B
Silicone Rubber AMS 3220B

Temperature range

Silicone +55 to +250oC

Performance

Frequency  Field Attenuation
10KHz H 45
100KHz H 68
1MHz H 88
1MHz E >100
10MHz E >100
100MHz E >100
400MHz P 100
1GHz P 84
10GHZ P 42

How to order

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

Shielding Series Filler Code Thickness Size
GX = Monex SX = Silicone 0005 = 0.5mm xxxx-xxxx
    0007 = 0.75mm  

Examples / Notes

GX-SX-0005-Drawing No. specifies a cut gasket fabricated from 0.5 mm thick Monex Expanded Monel Foil.
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Image on how to measure a gasket

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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Material data sheets

These documents contain information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product.

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Application notes

These mini-guides have been designed to help give a quick overview of the product families, their main advantages, usual applications and points to consider during the design stages of a project.

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Product catalogues

Learn more about our extensive range of products.