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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.



Formex insulating films

The Formex insulating films (Formex GK) are flame retardant polypropylene films. Formex characterises by a good dielectric strength (0.43mm, ca. 24 KV, according to ASTM D149) and meets the flammability classification UL94 V-0.

Delivery forms of Formex

The films can be delivered according to the customer on rolls, as sheets or as die-cut parts. Especially as die-cut parts the films characterise through good foldability, form stability and their qualification for different norm requirements with regard to thickness and comparative tracking index. The DIN EN 60950 and UL 60950 require a minimum thickness of the insulation of 0.4 mm between the active electrical parts and the casting for insulations in devices (e.g. switching power supply, insulation 230-V connection to chassis) of the information technology. Furthermore the Formex films can be equipped self-adhesive. The films are available in thicknesses of 125 µ up to 760 µ, in black or white, as standard on rolls with a width of 610 mm up to 1,340 mm.

Summary of the properties of Formex:

  • Flame retardant according to UL 94 V-0
  • High dielectric strength
  • High mechanical stability, that enables multiple bending
  • Extremely resistant to ageing and chemicals
  • Nearly no moisture absorption (moisture absorption of 0.06%)
  • Very-well die-cutable
  • ROHS-/WEEE-conform
  • IMDS-entry

Applications for Formex:

Computer technology, monitors, printers, peripheral devices, consumer electronic


  • Laminated with metal film as a EMC/EMI shield
  • When using the black model, it can also be used as a lightproof covering for cabinet slots
  • Isolation between motherboard and metal casing
  • Isolation between extension cards
  • Imprinted with connection instructions


  • Different applications as insulating die-cut parts in emergency lights, informations signs and street lightings
  • Lamp shades

Washing machines, refrigerator, dryer, etc.

  • As cover films for the electronic
  • As protection against contact with tension parts
  • As barrier film against steam
  • As splash guard

Current distribution

  • Isolation in devices like circuit breakers, consumption meters, control cabinets, measuring equipment and switch casings
  • Usage as isolation between basic- and service voltage

Bus bar

  • Usage as isolation between live parts
  • As covering of non-used connections


Wir liefern folgende Formex-Typeeen:

  • FORMEX GK-5BK            
  • FORMEX GK-10               
  • FORMEX GK-17               
  • FORMEX GK-30
  • FORMEX GK-40              
  • FORMEX GK-62              
  • FORMEX-94BK 
  • FORMEX-125Bk


(Bilder von ITW Formex);

Halogen-free Formex CN film

We also providethe halogen-free Formex CN film.