A method comprises providing a liner to at least a portion of at least one
surface, the liner comprising the product of reaction of (a) at least one
prepolymer bearing isocyanate groups; (b) at least one polymer bearing
isocyanate-reactive groups; and (c) at least one polymerizable reactive
diluent; wherein the surface comprises at least one inorganic mineral
other than a metal or a glass, with the proviso that the surface is a
surface other than a trafficable surface.