News News
Nanomaterials rethink sustainability strategies in coatings
Nanomaterials are increasingly shaping how the coatings industry approaches sustainability – not as a short-term response to regulatory pressure, but as a long-term materials strategy. Researchers and technology providers agree: environmentally friendly coating systems will only succeed if performance, durability and resource efficiency are considered together.
One key driver is the growing awareness of the environmental consequences of conventional substances, such as fluorinated compounds or fossil-based raw materials. The search for alternatives has pushed nanomaterials into the spotlight, particularly those with environmentally benign chemistries and structures. Their potential lies not only in replacing critical substances, but also in enabling entirely new functionalities – from scratch-resistant and corrosion-protective surfaces to photocatalytic or temperature-regulating coatings.
At the same time, experts caution against rushed reformulations. Sustainable coatings must meet technical requirements over their full service life. Otherwise, premature failure and frequent replacement would negate any environmental benefit. This makes a solid scientific foundation and a holistic view of the coating system essential.
Bio-based and geo-based raw materials as complementary building blocks
An important role is played by bio-based and geo-based raw materials. While bio-based polymers help reduce dependence on fossil carbon, geo-based materials such as silanes and siloxanes offer widely available alternatives with high functional performance. In some applications, these materials even contribute to long-term carbon stability, as they transform into inert structures like silicon dioxide during use.
The combination of nanotechnology with bio-based and geo-based raw materials is therefore opening up new pathways for sustainable functional coatings – solutions that are not only PFAS-free and low in emissions, but also energy-efficient across their entire life cycle. As regulatory demands increase and climate challenges intensify, such material concepts are likely to become a central pillar of future coatings development.
Sources
