The STIHL Silicone spray lubricates, maintains and protects the transmission parts of STIHL sweepers. Unlike fatty lubricants silicone film ensures that dirt does not stick. In addition, it is water-repellent. The STIHL Silicone spray ensures easy and low-wear operation of the sweeping equipment when used regularly (about every 10 hours). By the blue color silicone spray also serves as proof that the customer has used no other oils or fats that affect the function of the gearbox.