Polyurea Spray-Applied Systems for Concrete Protection
Polyurea spray coatings technology is a recent development in the polyurethane coatings industry. Polyurethane chemistry has been in existence for approximately 60 years, while elastomeric urethane coatings have been available since the 1970s. Polyurea elastomer technology was introduced some 10 years later. The two main application areas are Reaction Injection Moulding (RIM) and sprayable coatings.
Polyurea coatings combine extreme application properties such as rapid cure (even at temperatures well below 0 øC), and insensitivity to humidity, with exceptional physical properties such as high hardness, flexibility, tear and tensile strength, and chemical and water resistance. This results in good weathering and abrasion resistance. The systems are 100% solids, making them compliant with the strictest VOC regulations. Due to its specific curing profile and exceptional film properties, the polyurea spray coating technique has been introduced into many areas, including corrosion protection, containment, membranes, linings and caulks.