Our purple coating (30ml) contains tetrafluoroethylene. It can restore deep luster for a long time, protect your car from scratches, adopt advanced nanotechnology, be waterproof and stain-resistant, and easy to maintain. Its usage method is very simple: 1. Clean and dry the surface of the car; 2. Spray the spray evenly on the surface of the car. \ n3. Wipe in circular motions with a fiber cloth. 4. Repeat the spraying 2 to 3 times until the coating is fully formed. And after use, a protective coating will form on the surface of your car, which can last for several months and provide a lasting luster.