We apply Thorocoat Fine with customer choice of color. Thorocoat Fine is a smooth high-build acrylic coating designed for airless spray application. ThorocoatŪ Fine will be applied to concrete, masonry, and stucco surfaces, whether new or aged. Because of its special selection of color pigments, it is used as an interior coating to improve the light reflectivity of parking garages and as an exterior coating to protect and decorate residential buildings.