Gyeon Q2M Ceramic Detailer, 500ml is the perfect maintenance product for ceramic coated cars that match the best of both worlds - spray sealing and regular quick detaling. Gyeon Q2M Ceramic Detailer, 400ml has the main function of increasing the brightness, gloss and adding hydrophobic properties. Easy to Use - Gyeon Q2M Ceramic Detailer, 400ml does not differ from Gyeon Q2M Quick Detailer, 500ml when it comes to ease of use. It can be used on both dry and wet paint, where it has its potential as a drying aid. It can be used on any exterior surface, covered or not.