Emulsion and epoxy paints are widely used for wall and floor coatings. With increasing requirements on performance, polyurethane coatings are also used in various cases for high-performance architectural coatings (HiPAC). Two-component (2K) aliphatic polyurethane coatings have excellent weathering, chemical, abrasion and scratch resistance, and are tough but flexible. Therefore they set the quality standard for high-performance wall and floor coatings. However, conventional polyurethane coatings are solvent-based, which may cause strong odor, high VOC emissions and a fire/explosion hazard, especially for interior applications. Innovative coating solutions would meet the requirements for high-performance, environmentally friendly and high-efficiency coatings through 2K waterborne polyurethane and polyaspartic technology.
Waterborne polyurethane coatings are used for both floor and wall coatings. For floor coatings, they are the topcoat over a functional layer – in many cases solvent-free epoxy or polyurethane – as a protective layer for abrasion resistance, chemical resistance, weathering, etc. Application areas include offices, lobbies, showrooms, warehouses, supermarkets, schools, tennis courts, industrial workshops, etc. For wall coatings, they are a high-performance functional topcoat to fulfil easy-to-clean, stain-resistant, acid-rain-resistant and anti-graffiti requirements. Application areas include the interior walls of food process plants, electronics plants, schools, hospitals, metro/railway stations, kitchens/bathrooms, as well as exterior walls where easy-to-clean or anti-graffiti qualities are needed. They can also be used as a clear sealer over stucco, stone paint, stone cladding, or even bare concrete for protection.