ITEM NAME:9H Ceramic Cars Glass Coating Liquid Hydrophobic 30ml Professional R6A4 M2Z9 Description&Preview.Super hydrophobic glass coating, H9 hardness. Hardness: 9H hardness. Type: Car liquid ceramic coat. 1 Car Liquid Glass Coating. Put coat liquid on the cloth. Protect your car from aging, fading, weather and sunlight erosion, acid rain, industry powder, etc.