Tablet coating is the process where we apply excipients over tablets in the form of a layer & this process is carried out in a coating pan. The excipients can’t be applied in dry form, so we have to prepare a solution or suspension of tablet coating materials in a suitable solvent. The suspension is sprinkled over the tablets, which are in motion. The solvent is evaporated by the introduction of hot air, and a layer or solid coating materials is deposited over the tablets. In conventional coatin