Slip casting tray has the identical chemical composition and performance with fused silica crucible for polycrystalline silicon ingot grow, but the overall size are comparably small, the biggest difference or prominent character of slip casting tray is its proportion of height to other dimensions is much more smaller than that of fused silica crucible, this made are widely used for drying purpose such as precious metal powder, phosphors for TV or fluorescent lamp. The slip casting tray also has the characteristic of excellent dimension, good thermal shock resistance, strong resistance to chemical corrosion. All kinds of size of trays can be custom made.