Labels and glue reminders cleaning liquid

During cartridges refilling to laser printers sometimes we have problems with removing reminders of the old seal or label.
Specialist liquid for glue labels and glue remainders is an exit for this problem, thanks which we get rid of all remainders. During installing the new preservative seal (Seal) in the laser cartridge, it is very important to remove entirely the remainders of old seal. Prepared surface under sticking new seal has to be perfectlly clean.