Cleaner Green Free Pro

Effective against algae, moss, and lichen. For all outdoor surfaces, including facades, roofs, paving stones, awnings, etc. Apply with low pressure spray applicator or a brush. Grön-Fri Proffs professional cleaner can also be applied with spraying equipment, with an adjustable concentration of chemicals (blend ratio 1:14). On weathered surfaces, such as roofs, residues disappear over time without the need to machine the surface after application. On painted vertical surfaces, e.g. facades, it is usually necessary to wash the surface to completely remove residues.
The surfaces will be free of new growth for up to four years. Biodegradable. Highly-concentrated, dilute 1 to 14 with water. 1 litre of concentrate makes 15-litres of solution, enough to cover about 75 m². Registered in Basta.