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Discover now our wide-ranged job offers and have a carreer at Dr. Dietrich Müller. We are looking for:

  • Wholesale and Foreign Trader
  • Graduated in Electrical Engineer


PCIM Europe Nuremberg 2015

Thermally conductive pad: Thermipad TP 22715 with 15 W/mK

SPIE Smart Structures/NDE conference

Electronics & Components Hong Kong

Imports and exports of the electrical industry


InnoTrans Berlin

World Energy Engineering Congress Washington

Enova Paris

International Electric & Automation Show Bucharest

CFRP profiles

Energie Impulse Aachen

Water-jet cutting

 CWIEME in Berlin 2013

Coil Winding 2013

Thermiglue TL 23010

Coil Winding 2012

CWIEME Berlin 2012

Italian bobbin manufacturer

Working hours

NEC Birmingham UK

Advanced Engineering UK 2011

Clean Energy Expo Asia 2011

Contract 4S iPhone protectors


Electric Drives Production Conference

MOTEK 2011 and Bondexpo

IAA 2011

Norton TH

ArpaxX-Aramid Paper

Slot insulation material

Bern and public transport

Germany with great opportunities in the field of electric cars

Stamp parts from Valox for the lighting industry

Thermal management for LED – Applications

APTIV films are available as a new high performance materials

ArpaxX - push up the heat: Dr. Dietrich Müller GmbH

ZVEI: The Electrical Industry expects that the boom will continue in 2012

Lectures at the CWIEME Berlin 2011

CWIEME Berlin 2011: Dr. Dietrich Müller GmbH with a large product range

Increased Growth Forecast for the German Electrical Industry

Hannover Messe CoilTechnica:  A Good and Positive Response for Dr. Dietrich Müller

Delivery situation in Japan

FIEE: A resounding success for Dr. Dietrich Müller


Dr. Dietrich Müller: Punched parts made ​​of 3M VHB Tape

Dr. Dietrich Müller: Nomex® parts in self-adhesive version.

Dr. Müller GmbH CoilTechnica, Hannover.

Kapton MT in different varieties and Thermiflex

Dr. Müller GmbH: New product for the solar industry

Dr. Dietrich Müller registered as a UL – „Repackaged Recognized Components“ Company.

CWIEME Berlin 2010: Dr. Mueller in Ahlhorn

Dr. Mueller: High technology and innovation at one time in one venue

Dr. Müller GmbH continues its leadership as a supplier of Ultem films

Dr. Müller GmbH: New product line for films release

Dr. Müller proud of the opening of the Germany's first offshore wind park

Müller and Temac: Distribution agreement sealing materials

Get involved with the latest insulation product offerings at the Coil Winding 2010 – Dr. Müller GmbH


Direct request:

Enquiries from the United Kingdom:

Dr. Dietrich Mueller UK Limited

Tel    +44 7549 834830
Fax   +44 2476 996466


Enquiries from all other countries:

Tel: +49 4435 971010
Fax: +49 4435 971011

Let us know, which product you are
looking for and we will give you the
adress of the right distributor.



What is polyester film?

Polyester film is a widely-used electrical insulating material.

What is Mylar?

Mylar is the polyester film brand of DuPont, which can be manufactured with different surfaces and different thicknesses.

Is it possible to imprint polyester film with a laser printer?

Polyester films can be imprinted with a laser printer.

Which material thicknesses of polyester film are available?

Polyester film is available in the thicknesses of 0.12 up to 0.5 mm. Besides we deliver laminates made of polyester film which have thicknesses from 0.8, 1.0, 1.2 and 1.5mm.

Is it possible to cut polyester film with a laser?

Polyester films can be cut with a laser, but traces of smoke can occur.

How should polyester film be stored?

The polyester film is almost immune to all climate influences. We recommend storing in the shipping package until it is used. A dry, dust-free storage room with a room temperature under 30°C is favourable.

The influence of detrimental factors like moisture and direct sunlight because of long-term outside storage should be avoided. The film should be brought to the working area or a similar climatic room at least 24 hours before using.

It is recommended to remove the film out of the shipping package straight before using it. After removing the transportation with a steel spit avoids deformation or damage of the outer film layer. We are not aware of a limitation of the storability of the polyester film. Nevertheless we recommend processing the film during one year.

Against which chemicals is polyester film unresistant?

Polyester film is not resistant against nitric acid 65% and 100%, nitro benzine, phenol ammonium hydroxide and sodium hydroxide.

How resistant against cold is polyester film?

Polyester films have a cold resistance of -196°C as per DIN 53372.

PEN film

PEN film was originally developed for high-class flexible printed circuits and today it is often used as an aroma barrier in PET plastic bottles. PEN (polyether naphtalat) characterises especially by a high temperature resistance against polyester (155°C service temperature, instead of 130°C).

Also Teonex® outmatches the classic polyester films (Mylar®, Hostaphan®) during ageing tests with harder conditions (dirt, moisture) because it is more resistant against hydrolysis and diffusion. Polyester films and PEN films do not differ in view of the processing.