Chrome-Free Pretreatment
Sustainable Corrosion Protection without Hexavalent Chromium (Cr(VI))
With Nabutan 310, NABU has been setting benchmarks in chrome-free aluminum pretreatment for over two decades. As early as 1998, NABU was among the first companies in Germany to successfully introduce chrome-free systems to the market – at a time when this technology was not yet widely established.
Proven Long-Term Performance under Extreme Conditions
As part of a GSB outdoor exposure test in Florida, profiles pretreated with Nabutan 310 were exposed to extreme environmental conditions:
- Intense UV radiation
- High humidity
- Aggressive marine atmosphere
Even after more than 10 years, the components showed no significant signs of corrosion – a clear proof of the system’s long-term stability.
Advantages of Nabutan 310
- GSB approved
- Free of hexavalent chromium (Cr(VI))
- Corrosion protection comparable to conventional chromating
- Classified at most as irritant (simplified handling and storage)
- Suitable for no-rinse processes
- Reduced rinse water consumption
- Lower disposal and operating costs
Experience That Ensures Process Reliability
As a pioneer in chrome-free technology, NABU has extensive expertise in converting and optimizing existing systems. We support our customers in:
- Implementing chrome-free processes
- Stabilizing bath control
- Optimizing adhesion and corrosion protection
- Taking a holistic view of the entire process
Today, the Nabutan series includes a full range of chrome-free products for a wide variety of applications and metal substrates.
Sustainability with a System
Chrome-free pretreatment combines:
Chrome-free pretreatment means acting sustainably.