Directions for UseLithofin ALGEX should be diluted with water approx.1:10 (when used as a preventive treatment 1:20) anddistributed on the surface using a watering-can or a sprayer. After application, the areas should not berained on for at least 4 hours. The surfaces will become bright, clean and free of deposits within a few days. Surface residues can be washed off with wateror they will disappear when it rains. Please Note: Lithofin ALGEX is not harmful for plants, however, they should not be sprayed or should be washed off immediatley. Application Temperature: 10 to 25°C. Do not use on warm surfaces. Coverage: approx. 20 to 50m² when using a wateringcan; up to 150m² when using a sprayer.