Nomex®

Supplier to the Queen—even the Queen of England relies on tailor-made seals from Dr. Dietrich Mueller GmbH.
Represented everywhere – the ICEs of Deutsche Bahn also relies on tailor-made Nomex® parts from the company Dr. Dietrich Mueller GmbH.
Transform electricity and isolate it perfectly, thanks to insulating materials from Dr. Dietrich Mueller GmbH.
Electricity converted into movement and optimally insulated, the tapes and insulating materials from Dr. Dietrich Müller GmbH have also proven themselves in the electric motor sector.
Almost on the way and yet everything remains insulated – even the Transrapid in Shanghai relies on tailor-made insulating parts from Dr. Dietrich Mueller GmbH.
Supplier to the Queen—even the Queen of England relies on tailor-made seals from Dr. Dietrich Mueller GmbH
cables. Optimally insulated. Thanks to insulating films of DR. Dietrich Müller GmbH
Technology for medicine. Films from Ahlhorn are also used here.
French The Golf. the car And the confidence in thermally conductive pastes by Dietrich Müller GmbH.
Versatilely used and to be found almost everywhere – the technical films of Dr. Dietrich Müller GmbH are used eg for fuel cells.
Versatilely used and to be found almost everywhere – the technical films of Dr. Dietrich Müller GmbH are used eg for fuel cells.
Transform electricity and isolate it perfectly, thanks to insulating materials from Dr. Dietrich Mueller GmbH.
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Inquiries from all other countries:
Tel: 49 4435 971010
Fax: +49 4435 971011
E-mail: info@mueller-ahlhorn.com

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

direct request:
Inquiries from the United Kingdom:
dr Dietrich Mueller UK Limited
Tel: 44 20 80894197
Fax: + 44 20 80894198

E-mail: info.uk@mueller-ahlhorn.com

Nomex®

ProductsOrder no.DescriptionThickness
in mm		1) in kV/
mm		insulation classColorApplicationPDF DEPDF EN
Nomex®
Type 410		FIAramid paper calendered0,050 – 0,76017,0 ≥H (180°C)chamoisinsulating material in the
Electrical engineering,
slot insulation in
hand-wound
engines as well as
layer isolation in
transformers		DownloadDownload
Nomex®
Type 411		FIAramid paper uncalendered0,130 – 0,5809,0 ≥H (180°C)chamoisDownloadDownload
Nomex®
Type 414		FIAramid paper calendered0,18 – 0,38024,0 ≥H (180°C)chamoisDownloadDownload
Nomex®
Type 992		FIAramid press board
low density		1, 6/3, 216,0 ≥H (180°C)chamoiselectrical engineering
for production of
three-dimensional parts,
Milled parts in transformer construction		DownloadDownload
Nomex®
Type 993 		FIAramid press board
medium density		1,0 – 4,021,0 ≥H (180°C)chamoisDownloadDownload
Nomex®
Type 994		FIAramid press board
high density		3,0 – 9,627,0 ≥H (180°C)chamoisDownloadDownload
Nomex®
Type 994		FIAramid press board
medium density		1,0 – 2,021,0 ≥H (180°C)chamoisOrderOrder

1) Dielectric strength / please refer to our data sheets for more precise values
Flexiso® is a registered trademark of Dr. Dietrich Mueller GmbH
Nomex® is a registered trademark of DuPont

  • Insulation class H (up to 180°C)
  • Calendered or non-calendered aramid paper
  • low flammability
  • Good dielectric strength
  • Good material life at low temperatures
  • Good resistance to acids and alkalis

NOMEX®

NOMEX® is a synthetic aromatic polyamide polymer (aramid), which is characterized by a particularly stable molecular structure.

This is responsible for the excellent dielectric, thermal, chemical and mechanical properties of NOMEX® and opens up NOMEX® products for a wide range of applications.

As surface insulating materials, NOMEX® Papers and pressboards have been used in transformers, motors, generators and other electrical devices for more than 35 years and have proven their overload capacity and high reliability even under extreme operating conditions.

NOMEX® Paper is made from two forms of the aramid polymer, the fibrids (as binding particles) and the flakes in a papermaking process (Type 411). In a second step, the NOMEX is compressed and crosslinked in a high-temperature calender® Papers (types 410, 414, E56, 418) reached.

thermal stability

Nomex is UL-approved (file number: E34739) for use in electrical machines at continuous operating temperatures of up to 220 °C, with the properties remaining almost unchanged even in continuous operation (UL 546 B).

For short periods (over hours), machines insulated with Nomex can also be operated at significantly higher temperatures.

Hardly inflammable, self-extinguishing

NOMEX® Aramid paper products do not melt and with a LOI (Limited Oxygen Index) value of over 20,8 at 220°C (the critical value for combustion in normal air) they do not support the combustion process (UL 94 VO).

High mechanical stability (tensile strength, rigidity, resistance to tearing and tear propagation, flexural stability)

Inherent dielectric strength: Nomex allows short-term stresses of 18 to 40 kV/mm without further treatment with paints or resins

Chemical resistance: NOMEX® is exceptionally resistant to acids and alkalis and is compatible with all types of paints, adhesives, transformer fluids, lubricating oils and coolants.

Low temperature properties: Due to its unique polymer structure, NOMEX® used in a variety of cryogenic applications.

Aramid paper insulating tubes

From Nomex® 410 we wrap tubing which can then be used to insulate studs or connectors.

These insulating sleeves can be manufactured in a wide variety of diameters.

through dr Dietrich Müller GmbH available types

NOMEX® Type 410

Application:

Slot cover slides, slot linings, end plates, layer insulation in transformer construction, stamped parts, adhesive tapes

Available thicknesses:

0,05mm, 0,08mm, 0,13mm, 0,18mm,

0,25mm, 0,30mm, 0,38mm, 0,51mm,

0,61 mm, 0,76 mm

Widths according to your wishes from

5 - 914 mm

NOMEX® Type 411

Uncalendered, soft, absorbent variant

Application:

Phase insulation, intermediate layer in transformer construction, adhesive tapes

Available thicknesses:

0,13 mm, 0,18 mm, 0,25 mm, 0,38 mm, 0,58 mm

Widths according to your wishes from

5 - 965 mm

NOMEX® Type 414

Similar to type 410, more flexible, therefore easier to shape with a more open surface and better absorbency compared to type 410

Application:

Phase insulation, cover insulation, slot insulation, layer insulation

Available thicknesses:

0,18mm, 0,25mm, 0,30mm, 0,38mm

Widths according to your wishes from

5 - 914 mm

NOMEX® Type T993

Medium density, malleable, good absorbency

Application:

Production of winding cores and spacers in transformer construction

Available thicknesses:

1,0 mm, 1,5 mm, 2,0 mm, 2,4 mm, 3,0 mm, 4,0 mm

NOMEX® Type T994

Highly compressed, mechanically high-strength

Application:

Spacers, strips, spacer rings in transformer construction, soldering pads, ultrasonically welded strip mats

Available thicknesses:

1,0mm, 1,5mm, 2,0mm, 3,0mm, 3,2mm, 4,0mm, 4,8mm, 5,0mm, 6,0mm, 6,4mm, 7,0mm, 8,0mm, 9,6mm

NOMEX® Type N196

Items are only available from us as remaining stock

Uncalendered, soft, absorbent variant

Application:

Phase insulation, intermediate layer in transformer construction

Available thicknesses:

0,38 mm (only as a remaining item)

Where to buy Nomex

Nomex can be purchased from us or from our dealers and distributors. You will find our distributors in almost every country or region of the world.

Nomex®

Inquiries from everyone else about countries:
Tel: 49 4435 971010
Fax: +49 4435 971011
E-mail: info@mueller-ahlhorn.com

Let us know what product you are search and we will give you the Address of the right sales partner.

Direct request:
Inquiries from Great Britain:
dr Dietrich Mueller UK Limited
Tel: 44 20 80894197
Fax: + 44 20 80894198

E-mail: info.uk@mueller-ahlhorn.com

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