For any type of protectant to work well on rubber and look good, the rubber must first be properly cleaned. Griot's Garage Rubber Cleaner removes any old silicone, waxes and dead rubber from the surface and properly prepares your rubber for the use of protectants. Follow up with our Vinyl & Rubber Dressing for a clean professional look! Both are biodegradable. 35 ounce bottle does not include Finest Sprayer.