This stuff is amazing. I applied this to my car a few days ago, and in that time normally my car would be dirty again, but this stuff repels dirt, and water. There are still no water marks on the windows after 3 days of rain, and no road dirt has stuck to the paint work. The rain has actually washed dirt off. Apply this once and for a while, all you'll have to do is perhaps give your car a hose down. Amazing stuff. Highly recommended.