Thinfilm Friction – from liquid phase


LF GmbH & Co. KG was founded in March 2016. The goal of the company is to develop, produce and market innovative friction material for industrial clutch- and brake-linings by reducing the thermal energy consumption by up to 90%.
The developmental strategy follows the foundress’s idea to create a liquid phase of the friction material before or during its application. This may be in detrimental contrast to today’s manufacturing concepts

in which powdered raw materials are mixed, casted moulded, while the later requires significant thermal energy. The foundress had this eureka idea during a dinner discussion on fluid dynamics.
The company can support manufacturing requests for prototypes and pre-series production for its customers. Due to the capital requirements for serial production LF GmbH & Co. KG does not intend to enter large scale production of finished clutch-linings and alike.

Panta rhei - all flows! (Heraclitus)


Today’s classical friction materials including compounds for clutch facings are being produced by mixing raw materials of usually powdery consistence. The next steps bring structure to the mixes while applying significant pressure and temperature to adhere the friction material to a given metal support during the industrial manufacturing process. To yield finished products, these semi-finished products need to be hardened and ground what requires highly technically demanding presses and tools and define the factory costs significantly. This traditional manufacturing process additionally requires several heating and cooling cycles that make for a highly energy demanding manufacturing process.

The just mentioned process requirements have a significant influence on the development of products, the manufacturing cost of prototypes, the minimum lot size, the total cost of the goods and the time to market. They may also influence the technical capability of the finished goods. At this specific point our concept takes position and shall be applied in the sectors automotive, industrial, wearables and prototypes. In particular in the field of prototyping, the product shows extremely large disruptive potential due to its mould-free capability. Above and beyond the possibility to manufacture lot size 1, while applying no-mould technology, may lead to significant improvements, especially in costs.

Field of use

Fields of application
Fields of application

In June 2017, we set up a laboratory to manufacture our compounds and prototypes and to achieve best possible conditions to further develop our materials.
The already developed liquid 2K-LIQFRIC® systems have successfully passed several friction tests and are ready to be put to the test by our customers.
Our material concepts allow for a formulation based on customer requirements that can be further developed in close collaboration.
The therefore required production capacities have been built up and are able to easily meet initial demands.
Our R&D department is currently developing a first generation of water-based compounds with an even wider field of application, while simultaneously looking to further improve our 2K products.
A simplified structure of our non-pressure moulds combined with completely unfettered design options allow for a fundamental shake-up of currently used clutch geometry as well as manufacturing thin-layer-materials between 300 - 1000 µm.
We are additionally looking into utilizing printing and additive manufacturing (3D-printing) to apply our products.
By accelerating the curing time (pot life approx. 15min, signs of green strength after approx. 120min), we are able to give shape to our products with short cycle times, that could be sped up even further by applying additional heat.
To test and verify our material concepts, we hired an external contractor who has provided testing results.
In the mean time we filed two patent applications that got approved as patentable by DPMA in Munich.
Our compounds are scheduled for serial production in Q 3/4 2018.


i.e. 2K-LIQFRIC® compounds for manufacturing overload-clutches and clutches (under testing). Please consult our application engineering to receive further information.


i.e. 2K-LIQFRIC® compounds for manufacturing EPB-linings directly bonded to the brake shoe (under testing). Please consult our application engineering to receive further information.


i.e. 2K-LIQFRIC® compounds for the manufacturing of holding brakes. Please consult our application engineering to receive further information.


i.e. 2K-LIQFRIC® compounds for the manufacturing of special grip shoes. Please consult our application engineering to receive further information.


i.e. 2K-LIQFRIC® compounds for the manufacturing of testing prototypes with near net shape geometry and small series products. Please consult our application engineering to receive further information.


LF GmbH & Co. KG offers the following friction material industry related consulting topics in particular in the rail sector:
Strategy, Leadership, Succession planning, R&D, or customer specific requests


Please contact us, we will process your request as soon as possible!


+49 214 313 830 30
LF GmbH & Co. KG
Marie-Curie-Straße 8
51377 Leverkusen

As an innovative company we love to support EARLY ADAPTORS ¹ and would therefore welcome the opportunity to start communication with like-minded companies, that would like to test new concepts of manufacturing and prototyping and love to develop new cutting-edge friction material concepts.

¹ Geoffrey A. Moore - Crossing the Chasm

LF GmbH & Co. KG
Innovationspark Leverkusen
Marie-Curie-Strasse 8
51377 Leverkusen
Phone: +49 214 313 830 30
Fax:     +49 214 313 830 39
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