• This type of coating is used in hygroscopic products. Application is only one to one and half percent of tablet weight which can be filmcoated or sugar coated later.
  • Its also used in products where the core of the product is very very dark and reflects even after filmcoating is done. So to avoid that dark core appearance of product these type of coating is used.

Eg. : Ferrous sulphate, Ayurvedic products, nutraceuticals, Pentaprazole to avoid excessive moisture

Seal Coat / Pre Coat