Nomex Pads
Nomex Pads
Pre-cut bespoke pads are produced at ASG on a daily basis and are just one of many components ASG specialise in manufacturing. 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 pads 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 pads can be cut.
The quality of the cut and finish of the pad is just as important as the material selected in ensuring the component doesn’t fail therefore we ensure our in-house manufacturing team follow our customers' drawings or samples to create an exact match.Depending upon the size and quantity of Nomex pads required one of many saws and presses can be used to carefully manufacture the final product, from a one off sample to multiple thousand batch runs.
Depending upon the size of the pad required, our Nomex pads can be supplied as loosely cut parts or kiss-cut in roll form. Our onsite laminating services means we can coat rolls or sheets of Nomex material prior to cutting them, allowing customers a choice of taking their pads with a plain or self adhesive backed finish.
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’ which is a combination of heat and pressure processes resulting in 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. Nomex pads are cut from stock sheets or rolls of material and used in the same way as gaskets where they fill irregularities and create a seal between surfaces, whilst provisioning insulation.
Product Enquiry
For information on Nomex Pads 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
Full technical data can be supplied upon request,
or downloaded from our online portal.
Why use Nomex Pads?
Nomex pads are often used as the material is specially designed for use within 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. Nomex electrical insulation pads also prevent electrical arcing (where 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 pads offer excellent high temperature and chemical resistance, electrical insulation properties and are flame retardant.
Why Use Nomex Pads?
Nomex pads are often used as the material is specially designed for use within 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.
Nomex electrical insulation pads also prevent electrical arcing (where 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 pads offer excellent high temperature and chemical resistance, electrical insulation properties and are flame retardant.
Differences between Nomex Board and Nomex Paper
Nomex boards or ‘pressboard’ are manufactured with a higher rigidity and in greater thicknesses than its paper counterpart, offering great thermal and mechanical properties. Nomex boards are produced in sheet form, in sizes up to 6 metres by 3 metres and in three different densities, which can be converted into finished components using saws or presses.
Nomex papers are tough and flexible, manufactured in continuous rolls in thicknesses ranging from 0.05mm up to 0.76mm, which vary in availability depending on which of the 4 types of nomex paper taken. Properties offered by Nomex also vary depending on the type, but include mechanical properties, flame resistance, corona resistance and most importantly electrical insulation properties. The paper variants are often softer, more conformable and can be used for cushioning.
Other 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 cut pads as a solution to just about any application, some of 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.
Benefits of Using Nomex
- Self extinguishing
- Tear resistant
- Wide operating temperature range of –196 to +300°C
- Formable
- Radiation resistant
- Non-toxic
- Electrical insulation
Advantages of Using Nomex Pads
Pads cut from Nomex offer many advantages to users which include durability combined with a number of excellent properties which can protect products and equipment from extreme heat and electrical damage, therefore saving money. Nomex pads can operate within a temperature range of -196°C to over 300°C, offering chemical resistance to solvents, acids and alkalis, resistance to radiation, corona waste, fungus and are self-extinguishing. Nomex pads can also be used where there is exposure to oils, resins and refrigerants.
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, these pads can also 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
Please contact us using the form below or by calling us on +44(0)1384 252555.