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RETURN TO MAIN PAGE  NEXT COATING ISSUE

 

TABLET-TO-TABLET COLOR VARIATION 

 

 

Possible Causes Solutions
  • Too little coating applied
    		•
  • Increase quantity of coating applied
    		•
  • Inadequate mixing of tablets during coating
    		•
  • Increase pan speed and/or improve baffle system
    		•
  • Poor opacity (or hiding power) of coating
    		•
  • Reformulate coatings to improve opacity or use an opacified white pre-coat (for colored tablet cores)
    		•
  • Solids content of coating liquid is too high
    		•
  • Reduce solids content of coating liquid
    		•
  • Insufficient number of spray guns
    		•
  • Increase number of spray guns
    		•
  • Poor spray pattern bed distribution
    		•
  • Ensure gun position is correct and provides optimum bed coverage
    		•
  • Pan speed too low
    		•
  • Increase pan speed
    		•