This translates into Rhinoguard's cost to be between 6 and 7 cents per square feet, while the other go for between 14 and 16 cents per square foot. Also they say that their material should be redone every Spring. Rhinoguard lasts as long as 7 years when more than one coat is used. Certainly not, this is a typical oxymoron. There is no such thing as water base.
Water is a solvent for water-borne coatings.
Water-borne finishes can contain oils, alkyd resins, epoxy resins, polyurethane resins, etc. These are the various kinds of binders. They all have different properties. To apply water base to them as a means of explaining their values is not only misleading it is stupid. Likewise attempting to differentiate the water-bornes from coatings only containing organic solvents by simply labeling them as oil base is just as misleading for similar reasons.