For maximum graffiti resistance we generally recommend World's Best Graffiti Coating on vertical walls made from natural materials. 

On horizontal surfaces we recommend 4G Surface Guard FLOORS which offers excellent protection against graffiti, gum, grease and grime, but will not change the slip resistant properties of the surface. 

Concrete and stone floors are much easier to clean with your usual wet cleaning methods once 4G Surface Guard has been applied. 

For maximum graffiti resistance on walls you can first use 4G Surface Guard followed by a single coat of World's Best Graffiti Coating. This allows you to remove any subsequent graffiti with hot water alone and will preserve and protect the building surface, for many years to come.