Collaboration between Newag, Lankwitzer Lackfabrik and Covestro
First biobased railcar coating tested
Setting the course for more sustainable mobility on the railways
Polish railway manufacturer Newag broke new ground when he coated diesel locomotives with a paint based on renewable resources. Lankwitzer Lackfabrik of Berlin supplied the coating, which it developed in close collaboration with Covestro using its biobased coating hardener Desmodur® eco N 7300.
The transportation industry is always looking for ways to enhance sustainability
and reduce its carbon footprint. Vehicle manufacturers use lightweight
construction concepts to reduce fuel consumption and emissions. Railway
system operators contend that the mass transportation of people and goods by
rail is significantly more sustainable to begin with. But these factors are not
enough in the long run.
Polish railway vehicle manufacturer Newag SA broke new ground in resourceefficient
coatings when he coated two diesel locomotives with a paint based on
renewable resources. Lankwitzer Lackfabrik of Berlin supplied the coating,
which it developed in close collaboration with Covestro using the biobased
coating hardener Desmodur® eco N 7300.
“With a new product, a coating manufacturer’s first priority is, of course, to fulfill
the customer’s specifications,” says Mateusz Fedko, project manager at Newag.
“If the coating offers added value on top of that, as is the case here with the
renewable raw materials, it gives us a very good opportunity to set ourselves
apart from the competition.”
The project illustrates how far Covestro has come with its biobased coating
hardener, which it will be presenting at the 2017 European Coatings Show in
Nuremberg. “The coating formulated with this product performs just as well as a
conventional coating systems, but uses primarily renewable resources,” says
Julia Hellenbach, marketing expert for the transportation sector at Covestro’s Coatings, Adhesives, Specialties business unit. “Seventy percent of the carbon
in this polyurethane raw material comes from biomass.”
At Newag’s headquarters in Poland, the EVOClear® 294 / PH 94-0000 coating
system from Lankwitzer was sprayed just like a standard clearcoat. Joint testing
conducted by Lankwitzer Lackfabrik and Covestro confirms the high
performance of the clearcoat: It is on par with polyurethane systems of
Many tests passed – and not just for rail vehicles
The abrasion resistance and gloss stability of the coating were even 70 percent
higher compared with standard coatings, as the partners demonstrated with the
Amtec Kistler car wash test. Next they are planning a joint long-term weathering
The biobased clearcoat also fulfills the specific requirements of the railway
vehicle industry, of course. For example, it displays very good resistance to
cleaning agents, particularly those used to remove graffiti (DB standard “Blatt
39”), and to alkaline agents, hydrochloric acid and phosphoric acid. Tests
confirm that graffiti can be removed easily and gently.
Given the results so far, Michael Voxbrunner of Lankwitzer Lackfabrik is
optimistic about future developments: “I am certain this biobased clearcoat will
also create value for our customers in other industries.”
Besuchen Sie uns auf der European Coatings Show 2017 vom 4. bis 6. April in
Nürnberg, Halle 4A, Stand 528.