Air in the ceramic plastic body is always considered to be important issue which reduces the plasticity and thus the workability. In making ceramic bodies practical use is made by passing the plastic body through a kneading machine or a vacuum pug mill. During kneading or wedging the air is removed from the body and the plasticity is improved.
This principle is most widely used in lot of ceramic application process like clay processing and plastic body preparation for bricks, tiles, insulators etc and it is a proven technology and technique used in ceramic insulator manufacturing process.
