Nomex Gaskets and Seals

Nomex is a high-performance aramid material widely used for electrical and thermal insulation.

It combines excellent dielectric properties with thermal stability, mechanical toughness and inherent flame resistance, making it particularly suitable for demanding electrical, electronic and engineering applications.

Nomex provides effective electrical insulation whilst remaining relatively thin, lightweight and mechanically durable.

These characteristics make it particularly useful for insulating gaskets, barriers, separators and interface components where electrical isolation, thermal stability and accurate dimensions are more important than substantial compression.

Yes. Electrical insulation is one of the principal applications for Nomex.

The material provides excellent dielectric properties and is widely used within transformers, motors, generators and other electrical equipment where dependable insulation is required between conductive components.

Yes. Nomex is inherently flame resistant rather than relying solely upon a surface-applied flame-retardant treatment.

This characteristic makes it particularly useful in electrical, transportation, aerospace and industrial applications where resistance to ignition and flame propagation forms part of the component requirement.

Nomex is widely used for high-temperature electrical insulation and provides excellent thermal stability.

The appropriate operating temperature depends upon the particular Nomex grade, material thickness, mechanical loading and application. Where temperature performance is critical, the exact material specification should therefore be considered before manufacture.

Nomex can maintain useful electrical and mechanical performance in humid environments and has good resistance to the effects of moisture.

However, final suitability depends upon the particular grade, thickness, electrical requirements and operating conditions, so applications involving sustained moisture exposure should be considered individually.

Nomex is not a highly compressible elastomer and is therefore not normally selected where substantial compression is required to create a pressure-tight fluid seal.

It is better suited to insulating gaskets, barriers and interface components where electrical isolation, temperature resistance, flame resistance and component separation are the main requirements.

Nomex is a high-performance aramid insulation material typically selected where greater thermal stability, flame resistance, mechanical toughness or specialist electrical insulation performance is required.

Presspahn is generally used as a cost-effective electrical insulation and separator material for less demanding applications. The most appropriate material depends upon the required temperature, voltage, mechanical and environmental conditions.

Both Nomex and Lexan FR can be used for flame-resistant electrical insulation applications, but they are different types of material.

Nomex is an aramid fibre-based insulation material valued for flexibility, thermal stability and dielectric performance. Lexan FR is a flame-retardant polycarbonate material offering greater rigidity and impact resistance. The most suitable option depends upon the electrical, mechanical and dimensional requirements of the component.

Yes. Bluemay Weston manufactures bespoke Nomex gaskets and sealing components to customer drawings, dimensions, samples and specifications.

Components can be produced in simple circular and rectangular formats as well as complex profiles incorporating apertures, fixing holes, slots and other features.

Bluemay Weston manufactures Nomex gaskets and sealing components from sheet material using precision punching and water jet cutting techniques.

Punching provides an efficient manufacturing method for repeat production quantities, whilst water jet cutting is particularly useful for prototypes, lower-volume production, larger components and complex profiles where dedicated tooling may not be appropriate.

Bluemay Weston can manufacture Nomex gaskets and sealing components in quantities ranging from prototypes and small development batches through to high-volume production runs of many thousands or millions of components, depending on component size, material specification and customer requirements.