- 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.
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.
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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