CEPOL is a cerium oxide polish produced by Transelco USA. It is a glass polish developed jointly by Transelco and Fujimi, and was produced in response to requests from the glass polishing industry in Japan. CEPOL is a high purity cerium oxide with specially designed particle size distribution, which succeeds in making highly efficient and long-lasting polishing possible. The abrasive grains are treated by a special suspension process which results in an improved polishing efficiency, prevention of solidification of sediment, and improved washability after polishing. Even if the slurry density is low when polishing, CEPOL provides a high polishing efficiency and can produce the desired surface roughness.