Nomex Gasket

Gasket production is an area ASG ‘s excel in, using materials of the highest quality, we can offer a solution to almost any sealing or insulating application - even very specific, hazardous or demanding ones. One such range of gaskets on offer from our vast catalogue are those made from electrical insulation materials, which consists of different types each with its own set of unique properties to meet particular demands.

Nomex boards and papers are one of many electrically insulating materials on offer from Advanced Seals & Gaskets Ltd, which is manufactured in roll and sheet form of various sizes and thicknesses from 0.05mm to 0.76mm in the paper form and 1mm up to 4mm in the board variant from which Gaskets can be cut. The quality of the cut and finish of the gasket is just as important as the material selected, therefore we ensure our in-house manufacturing team follow our customers drawings or samples to create an exact match - whether it’s a simple square picture frame gasket or a more complex shape with cut-outs - we can offer a solution.

From a one off sample to multi-thousand batch runs, we have a machine to quickly and accurately produce perfectly formed gaskets in a range of sizes, these include a number of presses, kiss cut presses and CNC machines. Our onsite laminating services mean we can coat rolls or sheet of Nomex prior to cutting them, allowing customers a choice of taking their gaskets with a plain or self adhesive backed finish.

Nomex Gasket

Product Enquiry

For information on Nomex Gasket please complete the following quick enquiry or call us on +44(0)1384 252555.

    What Are the Key Characteristics of Nomex?

    • Colour: Natural
    • Thickness: 0.05mm, 0.08mm, 0.10mm, 0.13mm, 0.18mm, 0.25mm, 0.30mm, 0.38mm, 0.51mm, 0.61mm, 0.76mm
    • Density: 0.96 g/cm³
    • Temperature Range: -196°C to 300°C plus.
    • Resistances: chemical resistance to solvents, acids and alkalis, resistance to radiation, corona waste, fungus and humidity
    • Flammability: self extinguishing and non-drip

    Help and guidance

    If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.

    Samples - Technical Nomex Gasket

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    What are Nomex Gaskets?

    Gaskets, including those manufactured using Nomex are used for sealing, gap filling and insulating, which can take them form of a strip or pad, but are generally an intricately cut shaped piece of material placed between 2 surfaces to fill gaps or provide a barrier. Nomex is a synthetic aromatic polyamide polymer, formulated using two types of synthetic aramid polymers: ‘floc’ - short fibres, which provide mechanical strength and ‘fibrids’ microscopic fibrous binding particles, which result in the specialised Nomex boards and papers.

    These papers and boards can be manufactured with greater densities by way of ‘calendering’, a combination of heat and pressure which creates a permanent bond between the fibre structures. Nomex is used within applications that require the material to reliably perform under high temperatures, to offer dielectric strength and to be resistant to harmful chemicals.

    Why use Nomex Gaskets?

    Nomex gaskets made from board or papers are specially designed electrical insulation applications within high and low temperatures, where the gasket restricts the flow of electric current by supporting electrical conductors - without allowing the current to pass through therefore protecting electrical conductors from coming into contact with people or tools during installation, repairs or when an electrical appliance or device is being used.

    Electrical insulation gaskets also prevent electrical arcing (electrical current flows through the air between two conductors, as a result of the electrical breakdown of gas that produces an ongoing electrical discharge) and are used in other electrical insulation applications. Nomex gaskets offer excellent high temperature and chemical resistance, electrical insulation properties and are flame retardant.

    Benefits of using Nomex

    • Self extinguishing
    • Tear resistant
    • Wide operating temperature range of –196 to +300°C
    • Formable
    • Radiation resistant
    • Non-toxic
    • Electrical insulation


    Types Of Electrical Insulation Materials Available

    Advanced Seals & Gaskets work with a multitude of material manufacturers, giving our customers more choice and ensuring we can offer a solution to just about any application, our most popular electrical insulation materials include:

    Epoxy Glass - a green coloured material with good mechanical strength, good chemical, electrical and radiation resistance, low moisture absorption and a working temperature range of upto +120℃.

    Kapton - is a polyamide film which offers a combination of mechanical and tear strength along with chemical, electrical and thermal properties that enables the gasket to withstand vibration and extreme temperatures in demanding environments.

    Leatheroid - is a grey/blue coloured paper gasket material, also sometimes called Elephantide. This material is used within the electrical industry to insulate hot elements.

    MICA - is a mineral based sheeting material which has excellent mechanical performances, is resistant to chemicals and provides electrical and therm insulation. MICA gaskets are often used to replace asbestos as they can withstand extremely high temperatures of up to 1000℃.

    MYLAR is an extremely strong, flexible polyester film. MYLAR is an excellent insulation material with dielectric strength, moisture resistance and is an excellent insulation material.

    Presspahn is a brown coloured material, manufactured using kraft wood pulp. Presspahn sheets have excellent physical and mechanical properties, generally used as electrical insulation.

    SRBF is resin bonded fibre material which is tough and rigid, with an operating temperature of 120℃, low water absorption and is resistant to wear, impact chemicals.

    SRBP (synthetic resin bonded paper) is manufactured using layers of paper and synthetic resins. This material is suited to high and medium voltage application. SRBP has good mechanical and excellent electrical insulation properties, with low water absorption.

    Valox is an excellent electrical insulation material which also offers flame retardant properties.

    PTFE is a non- conductive plastic material used to produce electrical insulation sheets. PTFE sheets are suitable for high temperature applications and have a high melting temperature. This material has excellent dielectric properties and can be often found used in circuit boards.

    PVC is a tough, lightweight abrasion, chemical and moisture resistant material which has good dielectric strength making it a great material to use for electrical insulation applications.

    Advantages of using Nomex Gaskets

    Gaskets made from Nomex offer many advantages to users, its a durable material with excellent properties which can protect products and equipment from extreme heat and electrical damage, therefore saving money. Nomex gaskets can operate within a temperature range of -196°C to over 300°C, offers chemical resistance to solvents, acids and alkalis, resistance to radiation, corona waste, fungus and are self-extinguishing.

    Nomex Gaskets can also be used where there is exposure to oils, resins and refrigerants. Not only can Nomex be cut or pressed into finished usable gaskets, it can also be fabricated and shaped using glue, painted and will hold foil and adhesive laminates.

    Nomex boards and papers are manufactured in various densities, thicknesses and with various compounds which offer different levels of resistance. As Nomex is flame, chemical, heat and radiation resistant with a strong and durable physicality, the gaskets can be found used throughout military, aerospace and automotive industries.

    Popular Applications for Nomex

    • Electrical insulation of transformers, generators, electric vehicle motors, or wind turbine systems
    • Electrical insulation in electronics
    • Thermal protection in EV batteries
    • Within fire fighting equipment

    Nomex is used in industrial applications as a filter in exhaust filtration systems,to deal with hot gas emissions found in asphalt plants, cement plants, steel smelting facilities, and non-ferrous metal production facilities

    • Thermal barriers
    • Gaskets
    • Noise and vibration dampening
    Have a Question about Acoustic Foam Gaskets?

    Please contact us using the form below or by calling us on +44(0)1384 252555.