Our water based waterproof is a fluorurate hydroalcoholic solution, ideal for treating marble, granite and natural stones (tuff, sanded stones, limestone, etc.). Due to the very strong link between carbon and fluorine, the fluorurate resin offers very high resistance to atmospheric agents, pollutants and UV radiations. The very high resistance features make this product particularly suitable for external protective treatments. Drai water based is a protective agent combining very good waterproofing and excellent oilproofing. It can be applied by spray, brush or roller. When applying more than one coat, ensure the second coat is applied while the first one is still wet, since once polymerised, the surface becomes waterproof. On slightly porous materials, the coverage is approx. 1 Litre for 10+15 sqm.