Coating percentage

How much % of coating material is used in following?
Film coating
sugar coating
enteric coating

Generally in film coated tablet formulations the weight gain is very very less which can not be calculated as percentage, it is just few mg per tablet (say 5 to 10 mg).
In case of sugar coated tablets the weight gain of tablet after coating is significane in the range of 70% to 100% depending upon size and shape of tablets.
In case of enteric coated tablets the weight gain is in the range of 20% to 30% depending upon the tablet size and shape and more importanantly , the tablets must comply DT’ requirements (in both Acid medium & Alakaline medium).

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