History of Prepainted Steel Sheet

The production of prepainted steel sheet originated in the United States in the mid 1930s. At the beginning, the tech– nology was only adopted in producing prepainted steel strip. Till 1995, the first batch of coating equipment for broad strip steel was invented and produced in the United States in 1955. In the 1960s, the production of prepainted steel sheet made a rapid development in the United States, Europe and Japan. Besides, the prepainted steel products were also developed greatly all over the world. 

By the end of the 1980s, the production of prepainted steel sheet in China had been almost blank. Until the 1980s, Wusteel and Baosteel established the double-coating-dou– ble-baking production lines of prepainted steel sheets in succession. With increasingly promotion and application of Baosteel‘s prepainted steel sheets at home, more and more people make themselves acquainted with the production of steel sheets. Thus, at the turning point of the 20th century the 21st century, a lot of production lines of prepainted steel sheets emerged like bamboo shoots after a spring rain and there was also a great demand for such products. The domes– tic annual output of prepainted steel is more than 10 million tons according to the incomplete statistics in 2020.