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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.

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.




Product Order Number Description Thickness in mm 1) in kV/mm Isolation Level Colour PDF
Nomex® Typ 410 FI 15000 Calendered aramid paper 0,050 - 0,760 ≥17 H (180 °C) chamois Download
Nomex® Typ 411 FI 15010 Aramide uncalendered 0,130 - 0,580 ≥9 H (180 °C) chamois Download
Nomex® Typ E56 FI 15011 Aramide uncalendered 0,130 - 0,510 ≥15 H (180 °C) chamois Download
Nomex® Typ 414 FI 15020 Calendered aramid paper 0,090 - 0,380 ≥24 H (180 °C) chamois Download
Nomex® Typ 993 FI 15030 Aramid pressboard 1,000 - 4,000 ≥21 H (180 °C) chamois Download
Nomex® Typ 994 FI 15040 Aramid pressboard 1,000 - 9,600 ≥27 H (180 °C) chamois Download
  • Insulation class H (up to 180°C)
  • Calendared or uncalandered aramide paper 
  • Low flammability
  • Good electrical break-down resistance 
  • Good material life at low temperatures
  • Good resistance to acids and alkalis 
  • Also available as Nomex-pressboard T993 and 7994


Nomex® aramid paper is a synthetic aromatic polyamide polymer generally known as an aramid.
The paper is produced from two forms of the aramid polymer:
small fibrous binder particles fibrids mixed with short fibres floc.

The two components are comboned in a water based slurry from which continuous sheet structure is produced on a fourdrinier paper making machine.

Subsequent densification and internal bonding is achieved by means of high temperature calendering. The resulting paper is mechanically strong, flexibJe and has good electrical properties, which are maintained at high temperatures.

Nomex® aramid paper is officially classified as a 220°C insulating material by the Underwriters Laboratories -file E34739 and recognised by the principal institutes of the world.



Nomex® aramid pressboards

Increased thickness and rigidity set Nomex® aramid pressboards apart from the other forms of Nomex®. They are used for spacers and barriers in transformers, both liquid-filled and dry type, and as end-lams in motors. This family of products offers a range of mechanical properties which insures design flexibility in a variety of applications.

Nomex Type 992

is a low-density pressboard produced in two thicknesses (63 and 125 mils, or 1.6 and 3.2 mm) with a specific gravity of 0.5. This material's low density allows easy formation of complex shapes, and provides the highest saturability of the pressboard products.

Nomex Type 993

is a medium-density pressboard produced in eight thicknesses (40 to 240 mils, or 1.0 to 6.0 mm) with specific gravities of 0.7 to 0.9. This material provides a balance of rigidity and conformability along with outstanding saturability and excellent electrical properties in oil.

Nomex Type 994

is a densified version of Nomex Type 993, available in 11 thicknesses (40 to 380 mils, or 1.0 to 9.6 mm) with specific gravities from 1.1 to 1.2. It provides superior stability under compressive loads. Nomex Type 994 will also absorb oils and other fluids, but not as readily as Nomex Types 992 and 993.


Nomex® paper

Nomex Type 410

is the original form of Nomex® aramid paper, and is widely used in a majority of electrical equipment applications. This aramid paper is produced in 11 thicknesses (2 to 30 mils, or 0.05 to 0.76 mm) with specific gravities from 0.7 to 1.2. A calendered product, it has high inherent dielectric strength, mechanical toughness, flexibility and resilience. Nomex Type 410 aramid paper is used in almost every known sheet insulation application.

Nomex Type 411

is the uncalendered precursor of Type 410. It is available in five thicknesses (5 to 23 mils, or 0.13 to 0.58 mm), with a specific gravity of 0.3 and correspondingly lower electrical and mechanical properties. Nomex is used in applications such as motor phase insulation and transformer coil end filler, where high bulk and conformability are of prime importance. Nomex Type 411 offers increased impregnability and saturability when compared to Nomex Type 410.

Nomex Type 414

is electrically and thermally similar to Nomex Type 410, but is calendered under different conditions which produce a strong, but more flexible and conformable sheet. It is produced in five thicknesses (3.4 to 15 mils, or 0.09 to 0.38 mm) with specific gravities from 0.9 to 1.0. Aramid paper Nomex Type 414 was designed for use as slot insulation in hand-wound motors and for linear wrapping of wire, but is also used in other applications where its specific characteristics are desirable (such as folded or punched parts).

Nomex Type 418

also called Nomex® M aramid and mica paper is produced by adding 50 percent mica platelets, intimately blended with the floc and fibrids during papermaking. Nomex aramid paper Type 418 is available in five thicknesses (3 to 14 mils, or 0.08 to 0.36 mm) and is designed for high-voltage applications, including motor conductor and coil wrap, and transformer ground and layer insulation. Nomex Type 418 is a calendered product with high inherent dielectric strength (750 to 1000 V/mil, or 30 to 40 kV/mm), but can also be readily impregnated with varnishes where this is desirable. Nomex Type 418 offers increased voltage endurance when compared to Nomex Type 410.

Nomex Type 419

also called Nomex® M aramid and mica paper is the uncalendered precursor of Nomex Type 418. It is available in two thicknesses (7 and 13 mils, or 0.18 and 0.33 mm) with a specific gravity of 0.5, for applications where conformance and saturability are required.

Nomex® aramid papers are supplied in standard rolls in widths; the tolerance is +/- 4 mm for width 914 mm and +/- 7 mm for width 965 mm.
Different widths can be supplied upon request, starting from a minimum width of 6 mm with increments of 0,1 mm.
The cutting tolerance is +/- 0,2 mm.
Standard inside diameter is 76 mm and outside 292 mm.
Upon request, for some types of Nomex® aramid paper, rolls with superior outside diameter and length can be supplied and widths up to 1828 mm.