KT board is a new material made of polystyrene (PS) particles by foaming and laminating. The plate is crisp, light, not easy to deteriorate and easy to process. It can be directly used for screen printing (screen printing board), painting (paint adaptability needs to be tested), gluing and spraying, and is widely used in advertising display and promotion, airplane model, architectural decoration and so on. In advertising, it is used as a lining for exhibition, display and announcement of product publicity information release, and is also widely used in screen printing, especially for large-scale unified publicity activities.