Alginate Based
Natural Coatings
Naturally derived coatings for superior tablet performance
COAT ICON ® ALG is a natural, seaweed-derived coating solution designed for the pharmaceutical and nutraceutical industry. Leveraging the biocompatibility and excellent film-forming properties of alginates, it delivers a smooth, uniform finish while maintaining the integrity of the active ingredients.
Its functional performance ensures controlled release, improved stability, and enhanced patient compliance. COAT ICON® ALG offers a clean-label, sustainable solution that supports both innovation and environmental responsibility in oral solid dosage form design.
Key Features of Alginate-Based Tablet Coatings
| Property | Benefit |
|---|---|
|
Natural Origin |
Derived from seaweed (sodium alginate, calcium alginate) – clean
label |
|
Film-Forming |
Excellent barrier and smooth surface finish |
|
Moisture Barrier |
Moderate protection against humidity |
|
Biocompatible & NonToxic |
Safe for pharmaceuticals and nutraceuticals
|
|
pH-Sensitive Solubility |
Allows targeted release profiles |
|
Eco-Friendly |
Biodegradable and sustainable |
applications
Advanced Solutions for Pharma and Nutraceuticals
- Immediate Release Coating (when combined with soluble polymers)
- Sustained or Controlled Release (in matrix systems)
- Enteric Coating (in combination with other pH-sensitive polymers)
- Taste-Masking Coatings
- Natural & Clean Label Supplements (especially in nutraceuticals)
Formulation Components
| Component | Function |
|---|---|
|
Sodium Alginate |
Primary film-forming agent |
|
Plasticizer (e.g., glycerin, PEG) |
Improves film flexibility |
|
Anti-tack Agent (e.g., talc, MCC) |
Prevents sticking during coating |
|
Colorants (natural/mineral) |
Aesthetic appeal
|
|
Opacifiers (optional) |
Improves visual uniformity |
Application Guidelines
• Supplied as: Dry powder or ready-mix granules• Solvent system: Aqueous• Recommended solids: 10–15% w/w in water • Recommended wt gain: 2.0 to 3.0%
Advantages Over Synthetic Polymers
- Derived from renewable resources
- No harsh solvents needed (can be aqueous-based)
- Compatible with Talc and TiO₂-free formulations
- Widely accepted in vegan and organic product lines
Compliance & Safety
• Meets international regulatory standards (USP, Ph. Eur.)• Designed with pharma-grade excipients only• Available in GMP-certified, validated formats