Mylar Sheet
Mylar Sheet
Advanced Seals & Gaskets Ltd are not just material convertors, but also suppliers of raw material in roll or sheet form. We buy materials in bulk and hold master sheets and rolls of material in stock ready to despatch in full or convert. Mylar is just one of many electrical insulation material we can offer, which is also supplied under the names BoPET (Biaxially-oriented polyethylene terephthalate), Mylar Electrical Insulation, Mylar film, Melinex and Hostaphan which is a polyester film made from stretched polyethylene terephthalate (PET).
Mylar films are very thin and are measured in microns instead of millimeters other plastics, are available in a choice of 12 to 500 microns and are manufactured in roll form at 914mm wide, in lengths of 25 meters up to 200 meters depending on thickness., which can be cut down on site into sheets of 1 meter or 2 meters in length upon request. Mylar sheets can be laminated with a choice of adhesive coatings or foils prior to being converted into finished products such as pads, gaskets, washers or strips. This versatile plastic film can be found used in a variety of general purpose industrial applications within engineering, chemical and electrical industries in the form of one of the components listed above.
Product Enquiry
For information on Mylar Sheet please complete the following quick enquiry or call us on +44(0)1384 252555.
Characteristics of Mylar Electrical Insulation
- Colour: transparent - milky white depending on grade
- Thickness: 12 - 500 microns
- Roll size: 914mm wide x 25 to 200 metres (depending on thickness)
- Resistances: moisture, solvents, oil and grease
- Dielectric Strength: 7000 volts/mil
- Flammability: certain grades offer UL94 VTM-0 flame rating classification and are halogen-free.
Full technical data can be supplied upon request,
or downloaded from our online portal.
What are Mylar Sheets?
Mylar sheets are cut from the master rolls of stock material and often taken by customers who do not require large amounts of material. Poron sponge sheets can be cut down to any size, but as standard are supplied 1 or 2 meter lengths, available in a plain or self-adhesive finish. Materials are sometimes taken in sheet form as they give the customers the flexibility to be able to cut their own components as and when required or for testing.
Mylar itself is a milky white coloured heat resistant polyester film, is a flexible film which offers dielectric strength, moisture and chemical resistance (apart from alcohol), which will not become brittle under normal use. Components cut from sheets of Mylar material are durable and versatile, found used in many general purpose applications, including those at high temperatures.
Why use Mylar Sheets?
Mylar sheets can be used to cut products which can be used in applications such as magnetic media, imaging and graphics, and packaging markets, however it is more often found within electronic and electrical applications as insulation. Mylar electrical insulation materials offer good ageing properties, are strong and flexible with a high tensile strength, flexibility, durability as well as dimensional stability.
Both the materials and components cut from Mylar rolls of raw materials also demonstrate low moisture absorption, good dielectric properties and high thermal resistance, withstanding a temperature range of -70°C to +150°C. Sheets of Mylar electrical insulation are used when just a small quantity of products such as gaskets or washers need to be cut, for small strips, to ship as a sample or to send to customers who may want to cut their own components.
Types of Electrical Insulation Materials Available
Some of our other popular electrical insulation sheeting 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℃.
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.
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 Mylar Films
- Versatile and durable multipurpose PET plastic film
- Excellent resistance to water and most chemicals (not alcohol)
- Operating temperature range of -70°C to +150°C
- impact and tear resistant
- Electrically insulating
- Available in a choice of sheet size
- Thickness of 23 to 500 microns
Advantages of Using Mylar
Mylar sheets are a popular electrical insulation product which offers a number of excellent properties making it suitable for use in printing, packaging, sealing and electrical applications. Just some of Mylars extensive list of desirable features include its resistance to moisture and many chemicals, it has a broad operating temperature range of -70°C to +150°C, will seal against gases and is generally strong, flexible, durable and long lasting. Mylar electrical insulation is manufactured in a number of thicknesses from 23 to 500 microns, in roll sizes of between 25 and 200 metres and in different grades including a fairly new flame retardant variant, all of which can be cut down and supplied as sheet. Mylar electrical insulation has a rough surface which helps with handing, conversion and to hold adhesives in place. Sheets of Mylar Electrical Insulation can be supplied in full or converted into pads, gaskets, washers and strips. Some popular uses for Mylar Electrical Insulation include cable insulations, heating elements, within solar panels, motors and aerospace.
Please contact us using the form below or by calling us on +44(0)1384 252555.