1Eco-friendly materials, lightweight, no pungent smell, can be used for recycling. 2Firm at room temperature, soft after heating, easy to shape. Hardness, viscosity, cutting comprehensive performance is good. 3There is little expansion or contraction caused by temperature change. A well-made model can be preserved at normal temperature without deformation. 4No impurities, better hand feel, uniform color distribution, strong scraping performance. 5Widely used for various proportion of automobile, motorcycle and other industrial products of clay model making.