Solvent-borne acrylic coatings made the first significant entry into the protective coatings market as color- and gloss-retentive topcoats for epoxy intermediate coats. The newer waterborne acrylics represent the forefront of this technology. The best of these appear to be blends of acrylate and methacrylate resins. Some of the newer two-component versions contain both the waterborne acrylic and a cross-linking material, such as an epoxy or urethanehardener. Waterborne latexes have been around for a long time, but their limited resistance to aggressive chemicals and corrosive conditions have restricted their use mostly to aesthetic or architectural purposes.
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