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Train Insulation

Moniflex has been the material of choice among manufacturers of passenger rail coaches and trams beginning as early as in the 1930s. It is the only insulation that can be considered a true vehicle insulation; all other materials have their origins in the building industry where weight normally does not matter.

With the introduction of high-speed trains, the weight saving which is possible with Moniflex has contributed to its popularity. Add to that, the ease with which Moniflex can be worked and installed, coupled with the recyclability at the end of the life of the vehicle, Moniflex is the most economical insulation alternative.

Moniflex was developed and first patented in the 1930s and has been in constant use for over 75 years. For more than those 75 years, it has been used by the Scandinavian vehicle industry as insulation in passenger rail vehicles. Over the years it has been refined and improved upon, particularly in the area of fire resistance. Thousands of coaches throughout Europe have been built or refurbished using Moniflex as primary insulation.

Moniflex is made from the same, natural raw material as paper – cellulose. In view of present concerns about the environment and the use of natural resources, Moniflex has re-emerged as the obvious choice in insulation materials.

Moniflex as moisture barrier

By combining the non-absorbing Moniflex with another material such as glass-or mineral fibre, it is possible to ensure that the inevitable moisture which is the result of differences in inside and outside temperatures, only occurs in the Moniflex layers and is being drained of harmlessly. It also ensures that the fibre stays dry and retains its insulation properties.



MX is our own unique insulation product, Moniflex.



MXP is our insulation in combinations with other materials.

Moniflex in combination

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Moniflex + Glass wool + Aluminium foil

Glass wool has been a common insulation material for many decades in the rail industry. High performance for high temperatures, we focus on the unique thermal, acoustic and fire protection solutions. Our combined products will provide efficient insulation solutions for original equipment, where noise control is required. A range of non-combustible glass mineral wool slabs, used to provide acoustic and thermal insulation in a wide variety of applications.
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Moniflex + Polyester + Aluminium foil

Polyester is made from a white non-woven that fulfills the highest requirements of diverse flammability tests – optionally laminated with an embossed foil of highest-grade aluminum. Does not provide a substrate for mold and fungal growth.
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Moniflex + Melamine + Aluminium foil

This product is a lightweight, open cell melamine foam insulation developed as an alternative to traditional insulation systems, such as glass wool. These high performance melamine foam sheets have a wide temperature range, low smoke and flame properties and are available in standard sizes. Custom shapes and large foam panels are available by request.


Light weight and rigid
Impervious to humidity and moulding
Recyclable and fundamentally biodegradable
Non-toxic, non-fibrous
Long life
Fulfills most international fire and smoke standards


Thickness of Moniflex

2 layes = 10 mm
4 layers = 20 mm
6 layers = 30 mm
8 layers = 40 mm
10 layers = 50 mm
12 layers = 60 mm

Drawing of Moniflex's layers

Moniflex 6 Strengths

Green products
Age resistant
Moisture resistance
Easy to handle
Light weight

Moniflex Lifecycle

Lifecycle of Moniflex


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