PTFE Electrical Insulation Sheet

PTFE Electrical Insulation Sheet

PTFE Electrical Insulation Sheet

Electrical insulation materials such as plastics are just a small group of materials offered by Advanced Seals & Gaskets Ltd each sourced from high quality and reputable suppliers and manufacturers.  We are able to offer electrical insulation plastic sheets in numerous grades, colours and thicknesses, one of which includes a variety of PTFE plastics, or ‘Polytetrafluoroethylene’, sometimes also referred to as Teflon is a very versatile material which is manufactured  in sheets of between 0.25 and 100mm thick,  in sheet sizes of up to 1500mm x 1500mm (depending on thickness) from which components such as gaskets, washers and strips can be cut using one of our many on-site saws, presses or our oscillating knife.  These sheets can be supplied to customers plain or coated with a choice of self adhesives prior to being despatched or converted.

Product Enquiry

For information on PTFE Electrical Insulation Sheet please complete the following quick enquiry or call us on +44(0)1384 252555.

    Product Specification & Key Characteristics

    • Colour: Anthracite
    • Density: <90KG/M³
    • Fire Propagation Index: <12
    • Operating Temperature: -30°C to 100ºC
    • Thickness: 1mm – 100mm (can be laminated for greater thickness)

    Full technical data can be supplied upon request,
    or downloaded from our online portal.

    What are PTFE Electrical Insulation Sheets?

    PTFE electrical insulation plastic sheets are also referred to as Polytetrafluoroethylene sheets.  PTFE is a fluorocarbon material - which means it consists of only carbon and fluorine, natural coloured as standard, however other colours can be made to order.   Fluorocarbons like PTFE are solid at room temperature, hydrophobic (water resistant) and non-stick.  PTFE electrical insulation sheets made using a ‘Virgin grade’ in comparison to other plastics have a low mechanical strength, however this can be improved or reinforced with the inclusion of other additives such as glass fibre or carbon during the raw material manufacturing process.  PTFE electrical insulation plastic sheets are large pieces of material, usually manufactured to a specific size which can be supplied in full or used to convert into smaller components.

    Why use PTFE Electrical Insulation Sheets?

    Plastics materials are formulated and manufactured using different compounds in order to produce a product with specific properties.  PTFE or Polytetrafluoroethylene plastics are manufactured using a formulation creating sheets of material that offer many excellent properties and unique characteristics, which include high thermal stability, chemical resistance and an extremely wide operating temperature range of -240 to +260°C.

    PTFE electrical insulation sheets also offer chemical inertness (with the exception of elemental alkali metals, chlorine trifluoride and elemental fluorine at high temperatures and pressures), ozone, flame resistance and an extremely low coefficient of friction meaning few materials will stick to it without sufficient preparation.  PTFE plastic sheets are soft and formable, with good bearing and wear properties, and high dielectric strength, providing a barrier to restrict the flow of electrical current, protecting electrical conductors from coming into contact with people or tools during installation, repairs or when an electrical appliance or device is being used.

    Benefits of Using PTFE Electrical Insulation Plastic

    • Excellent temp range -200+260°C (short-term up to 300°C)
    • high resistance to many chemicals and solvents
    • high dielectric properties
    • low friction coefficient (create a slippery surface)
    • Non-toxic
    • Flame resistance

    Other Grades of Electrical Insulation Materials Available

    Advanced Seals & Gaskets work with a multitude of material manufacturers and suppliers, giving our customers more choice of plastic sheeting - our most popular materials being:

    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.

    Nomex can be manufactured using nomex paper or nomex board, it can withstand high temperatures, has high mechanical and dielectric strength, and is  an excellent insulation material for all kinds of electrical equipment and applications.

    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.

    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 PTFE Electrical Insulation Sheets

    Sheets of Electrical insulation PTFE offer users a number of excellent advantages meaning they are suitable for use in many applications and industries.  PTFE plastic sheets offer low friction, meaning moving parts will easily slide, causing less heat and wear, this slippy non-stick material is also easy to keep clean and dirt and dust will not stick to its surface.  PTFE  plastics are non-flammable, this is due not only to its very low friction, but also its ability to withstand very high heat and its extremely high melting point, they offer great chemical resistance, and are extremely durable when exposed to weathering, combined with great electrical properties it is ideal for use in most industries.  PTFE sheets are manufactured in a range of standard thicknesses which can be converted into a range of components such as gaskets, washers, pads and strips which can be found utilised as seals and fittings in chemical plants, food production and  pharmaceuticals.  Due to being non-corrosive, these strips can also be used  in laboratories where highly corrosive chemicals are handled, and for use within circuit board components due to it’s electrical insulation and heat resistance properties.

    Have a Question About PTFE Electrical Insulation Sheets?

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