What base board should be used to make real stone paint for open-air billboards?

Wood board or cement board. When decorating the door, you must first apply primer and then spray real stone paint. You can use wooden boards or cement boards, so that the surface will be smoother and more protective. Real stone paint is a kind of paint with a decorative effect similar to marble and granite. It is mainly pre pared from natural stone powder of various colors. It is applied to the imitation stone effect of building exterior walls. It is also called liquid stone.