Natural stone surfaces covered with green growth often become visible after a long, damp winter. This not only affects the appearance but also poses a certain safety risk due to slippery spots. Therefore, it should be removed.

The formation of green deposits is a natural process that depends primarily on how long it takes for the surface to dry out after rainfall. Theoretically, any outdoor surface can be affected, as spores and seeds are ubiquitous in the air.
Plants shed leaves and flowers that release tannins, pigments, and other compounds onto the surface. These residues form a good nutrient medium and, together with moisture, promote the growth of mold, algae, and moss. With older surfaces—especially absorbent natural stones such as sandstone, quartzite, and limestone, as well as precast concrete—dirt penetrates deeper and deeper.
Special chlorine-based cleaners remove these contaminants quickly and effectively. For fast, visible results, we recommendLithofin MN Outdoor Cleaner* for natural stone.

For green deposits, specially developed, pH-neutral outdoor surface cleaners can be used as an alternative. Although these products react more slowly, they work automatically in combination with rain and also provide preventive protection against new soiling for 6 to 12 months. So if you want to take preventive action against green deposits and don’t need to remove extreme discoloration, use Lithofin ALLEX*.

These two products are integral parts of the Lithofin line and are each available in 1 L, 5 L, or 10 L containers. This spring, at participating retailers, you’ll receive a free 500 ml container of Lithofin MN Exterior Cleaner* with every 1 L purchase of Lithofin ALLEX*.

Learn more about REMOVING GREEN DEPOSITS
*Use biocidal products with caution. Always read the label and product information before use.











