Microstructures in paint create self-cleaning and anti-fouling surfaces.

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Dirt particles are unable to obtain a hold on the leaves of the lotus plant and simply flow off with the rain droplets that fall on the plant. The StoColor® Lotusan®, part of Sto’s iQ Technology™ family of coatings, possesses a highly water-repellent surface similar to that of the lotus leaf. Its microstructure has been modeled on the lotus plant to minimize the contact area for water and dirt. The surface additionally offers enhanced hydrophobic properties.

Key Differentiators

Equipped with the unique self-cleaning properties of the Lotus-Effect® Technology, StoColor® Lotusan® keeps facades clean and protects them from algae and fungi in a sustainable way. The microtextured and super-hydrophobic surface maintains an extremely small contact area for dirt and water. The dirt particles, which are loosely adhered to the surface, are simply carried away by the rain.

Challenges Solved

The soiling of the façade becomes increasingly visible over time. On weather exposed sides in particular, microorganisms find an ideal environment for colonization in the form of adequate moisture and nutrients from dirt deposits. With Lotus-Effect® Technology, water and dirt flow off the surface immediately, leaving the façade clean and reducing the need for re-painting.

Watch a video on the science behind StoColor® Lotusan® coatings:

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