Highly effective preparation for ensuring water repellency of textiles and leather based on silicone polymers. Cross-linking occurs during drying. Thanks to its patented formula, the preparation is unique in that it does not impair the breathability of membrane textiles (Gore-TEX®, Sympatex®, etc.). Compared to ATSKO SILICONE WATER GUARD, it is supplemented with an effective UV filter. Therefore, it is suitable for all tarpaulins, tents, and other textiles that require water repellency and at the same time protection against mold, fungi, algae, and also discoloration due to UV radiation exposure. It is used for awnings, boat covers, umbrellas, outdoor wood, masonry, and furniture.