The chromium-free pretreatment of aluminum before a powder coating is our core competence. We are mainly active in the field of facades with our GSB-certified chrome-free passivation Nabutan 310, which is now successfully for 25 years.
Aluminium facade
Aluminium windows
Winter gardens
Aluminium sunblocker


In the steel sector, we offer with our Nabutan 260 a chromium-free alternative to zinc phosphating to guarantee a high corrosion protection and optimum paint adhesion. This new process is successfully in the field of tillage equipment and wood splitting equipment.
Tillage devices
Log splitter

Coil coating

NABU also offers suitable products for coil coating to clean aluminum coils optimally and prepare them for further processing.
Products out of aluminium band

Further applications

Our product portfolio covers many other application areas. We would be pleased to advise you!
Drawn products out of aluminium coins
Aluminium windows borders