This is the only protectant tested and endorsed by HAARTZ, the world's largest manufacturer of convertible tops. The protective film repels stains, acid rain, tree sap, bird droppings, salt, tar, grease and mildew. Contains Cibi Tinuvin 5151, the best ultra violet blocker available. Improves water and stain repellency. Will not streak. Does not include silicone. 16 oz. spray bottle