Technique Study on Hot-Spraying and Fast Curing Coatings and Its Application

A solvent free bicomponent fast-curing coating material has been developed. The technical specifications on the asphalt polyurethane, asphalt polyurethane resin, and coal-tar polyurethane have been presented, and the economical comparision on the running cost of the materials the mentioned above has been made. The hot-spraying and fast curing coating materials are advanced than others in the anti-corrosive performance, and suitable to renovate the corroded pipeline, and can protect internal/external oil tanks as well as internal large-diameter pipeline.