Formulation of Coating Composition

• Formulation of Coating Composition starts with selecting polymers like HPMC or EC that form a stable, protective film.
• Formulation of Coating Composition uses water or organic solvents to dissolve coating materials.
•  It includes plasticizers, opacifiers, and colorants to enhance flexibility, appearance, and functionality.

1. The coating formulation includes:
   • Polymer: Provides the structural matrix.
   • Plasticizer: Adds flexibility to the coating.
   • Solvent: Usually water (aqueous coatings) or organic solvents (non-aqueous coatings).
   • Colorants: For aesthetic purposes.
   • Additives: Such as preservatives or stabilizers.

2. Example of a Film Coating Formulation:

   • Hydroxypropyl Methylcellulose (HPMC): 10-20
   • Triethyl Citrate (Plasticizer): 5-10
   • Titanium Dioxide (Colorant): 2-5
   • Distilled Water (Solvent): Balance to 100

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