Polyester: white / hazy
Melinex® 339 - white
Melinex® 339 is an exceptionally white, opaque polyester film pre treated on both sides to promote adhesion to most printing inks and industrial coatings. Melinex® 339 is well printable and offered as rolls or sheets.
Mylar A - hazy
Mylar® A is a hazy polyester film for general electronics applications. Mylar A is available in 250 µm and in other thicknesses on request . We offer this film in rolls or sheets.
| Article No. | Surface | Colour | Width | Thickness | |
|---|---|---|---|---|---|
| 457460 | GLOSSY / GLOSSY | GLOSSY/GLOSSY | NATURE | 1220 | 0.25 |
White and hazy polyester films (PET films)
In addition to PET films for input systems and the crystal-clear polyester films, we also have coloured polyester films in our range. In our assortment there are, among others, white polyester films and hazy polyester films. These are high-quality, biaxially oriented polyester films (so-called BO-PET films). Biaxially oriented polyester films are made of the plastic polyethylene terephthalate and obtain their special properties through a special stretching process in both directions (biaxial).
The König Film Centre offers you
- Melinex ® polyester films white (from the manufacturer Dupont ®)
- Mylar ® polyester films (from the manufacturer Dupont ®)
White polyester film
White PET films offer the great advantage of a high opacity. The white polyester film Melinex 339 is a very successful and worldwide established product. The opaque plastic film has a print pre-treatment (coating) on both sides and offers an excellent printability. It is available in thicknesses of 125 µm and 175 µm in rolls or cut to size (other thicknesses are available on request). Melinex 339 has excellent chemical, electrical and thermal properties. It can be used for a wide range of industrial applications.
Hazy polyester film
Mylar A is a hazy polyester film that has been established for industrial applications for years. Compared to the white PET film Melinex 339, Mylar A film has no print pre-treatment and is not opaque. The cloudy polyester film is a good all-round product. It offers a particularly good price-performance ratio. Mylar A has a smooth and glossy surface on both sides. It is available in a thickness of 250 µm in rolls or sheets. Other thicknesses of this polyester film are available on request.
Properties
All biaxially oriented PET films are characterised by an extreme temperature resistance. Further advantages are:
- a high tensile strength (extremely tensile and tear resistant)
- excellent chemical, mechanical and thermal stability
- low moisture absorption
- excellent electrical insulating properties
- permanently embossable
- high dielectric strength up to 180 kV/mm
- well and stable printable
- a smooth surface on both sides
Processing of polyester films
Polyester films can be processed in many ways. This includes the possibility of cutting, punching, bending, printing, heat-sealing and gluing or self-adhesive finishing of the films. PET films are also suitable for use as high-quality self-adhesive labels.
PET films hardly become brittle as they age, because they do not contain any plasticisers. Deformation under heat is only possible to a limited extent with polyester films. No special accessories are required for processing polyester films.
If you have any questions about properties or applications, please do not hesitate to contact us. We look forward to your enquiry.
FAQ
What are white and opaque polyester films?
White polyester films such as Melinex 339 are opaque, double-sided printable films with high opacity. Opaque polyester films such as Mylar A are colourless, slightly translucent and offer a smooth, glossy surface for versatile industrial applications.
What material are white and cloudy polyester films made from?
Both types of film are made of polyethylene terephthalate (PET). Biaxial orientation gives them special tensile strength, temperature resistance and chemical stability, making them ideal for industrial applications.
What are the characteristics of white polyester films?
White Melinex 339 films offer high opacity, printability on both sides, excellent chemical and thermal resistance, low moisture absorption, high dielectric strength and extreme tensile and tear resistance.
What are the characteristics of opaque polyester films?
Opaque Mylar A films are smooth, glossy and robust. They have good mechanical, chemical and thermal stability, are versatile in processing and offer particularly good value for money for industrial applications.
What are the typical applications of white and opaque polyester films?
White films are used for printed labels, industrial markings, electrical insulation and thermal applications. Opaque films are suitable for flexible packaging, technical applications, protective covers and as a cost-effective all-round material.
In what thicknesses and formats are white and opaque polyester films available?
Melinex 339 is available in 125 µm and 175 µm, Mylar A in 250 µm. Both types can be supplied in rolls or in cut-to-size formats; other thicknesses are available on request.
How can white and opaque polyester films be processed?
Both films can be cut, punched, bent, printed, heat-sealed and glued. White films are particularly suitable for printed labels, while opaque films are versatile as an all-round material.