With 76% by wax volume of pure Brazilian ivory carnauba wax, Crystal Rock has one of the highest Carnauba content of any wax on the market. It coats paintwork in a smooth and glossy, yet tough and protective, water-repellent film and even adds gloss to white and silver. A layer of Crystal Rock can last up to 6 to 12 months and can be topped up with additional layers for even more protection. When exposed to water, Crystal Rock swells and closes its pores. This leads to the beading and sheeting of water that is characteristic of a car that has been treated with a high content Carnauba wax. The more layers are applied, the more waterproof it becomes. No wonder then that some of the most valuable automobiles in the world are protected with Swissvax Crystal Rock.