31c8a530_ANCES___A_REVIEW___PharmaTutor__Definition
[Sr. No.] 1 [Tablet Defect] Blistering [Reason] Entrapment of gases in or underneath the film due to overheating either during spraying or at the end of the coating run [Remedies] Use mild drying condition [Definition] 
Local detachment of film from the substrate forming blister.
COATING TECHNOLOGY AND ITS RECENT ADVANCES – A REVIEW | PharmaTutor
Definition