It is made up of special adhesive grade starch and a special mix of chemicals. It is partially hydrolyzed starches that are prepared by roasting in the presence of different catalysts. This chemical and mechanical reaction reduces the large molecule size into small molecule and with maintained viscosity. In Hot process the powder has to be cooked with recommended ratio in water to prepare the gum. The hot gum are highly recommended to use for the manufacture of corrugated boxes to get the better strength of boxes.Due to high cost of electricity and time consuming the Pasting Gum has been converted from Hot process to cold process.