Tiny brownish orange spots in the paint of vehicle are rust and they can keep spreading until paint completely fails. These can easily be removed with clay, the only way to completely clean automotive paint. It grabs foreign particles as it glides across the paint. The particles stick to the clay and do not redeposit onto the surface. Paint will feel glassy smooth and highly reflective. Use twice a year, clay will prevent paint oxidation and keep the finish looking as good as new. Like all clay, 3M Perfect-It III Cleaner Clay works on glass and chrome, too.Use any water-based lubricant to provide a slick surface for the clay to glide on.