It produces a slick, durable Water resistant shine. It is easy to apply to tires by spray or brushing. This product does not contain alcohol or other flammable chemicals eliminating the need for special storage cabinets. The product is Thixotropic, so even when it is a thick gel, its viscosity decreases when stressed by pumping or shaking. This is why it can be applied by spray to the tires. On leather, plastic dashboards or vinyl, it can be applied with a damp rag. This product can be diluted with water (1:1) for light applications on leather, plastic and vinyl. Even when it is water based (the advantage of being non-flammable) the emulsifying and wetting agents in the formula allow the silicone oils to attach strongly to the tires. The product does not wash off easily. Phosphate Free.