Spray diamond polishing agent (metallographic polishing agent) is a unique selection of raw materials of high quality polished diamond powder strong role for powdered, together with the unique grinding media. Unique diamond suspension technology into physical action and chemical effects in one, so diamond powder is uniformly suspended state. Fuller use of the polishing medium, a more uniform coating. Wide range of applications of the product for a variety of metals, ceramics, optical glass, precision instruments, meters and other materials, precious stones and high surface finish grinding and polishing. Easy to operate, with many environmental efficiency compared to conventional polishing material, diamond spray polish can make grinding, polishing and more rapid, simple, efficient, and clean, easy storage, lower costs, reduce sample preparation process, reduce polishing time to reduce the labor intensity of sample preparation, and very true reproduction of the material microstructure. Diamond spray polish product specifications to provide the following size: W0.1 W0.25 W0.5, W1, W1.5, W2.5, W3.5, W5, W7, W10, W14, W20, W28, W40, different polishing material can choose different size diamond spray polish. Spray diamond polishing agent to use: 1, before using the polishing cloth soaked with water to avoid friction heat; 2, start polishing discs will polish the diamond spray ejected rocked after inversion; 3, spraying diamond polishing agent spray should be the center of a circle polishing discs radially ejected 3-5 seconds. New fabric spraying time should be extended to allow for better grinding and polishing fabric capacity; 4, the polishing process constantly adding an appropriate amount of water can be. There are monocrystalline and polycrystalline.