COTAB AFC-P (Aqueous Film Coating)

Premium Ready-Mix Aqueous Film Coating System for Pharmaceutical Tablets.

Cotab AFC-P is a P.V.A. (Polyvinyl Alcohol) based ready-mix powder coating system specially developed for pharmaceutical tablet film coating applications. It contains a balanced combination of polymers, plasticizers, colouring agents, and essential excipients, allowing easy preparation of a uniform coating dispersion by simple mixing with water using a low-shear mixer.

This advanced film coating solution provides excellent tablet appearance, smooth surface finishing, improved mechanical stability, and efficient coating performance with reduced processing time.

Cotab AFC-P is a complete ready-to-use film coating system designed to simplify tablet coating operations. It eliminates the requirement for additional grinding or complex preparation procedures.

The formulation ensures:

• Easy handling

• Consistent coating quality

• Better processing efficiency

• Compatibility with available tablet coating equipment

Cotab AFC-P can be prepared using both Aqueous and Hydroalcoholic coating systems depending on application requirements.

Key Advantages of Cotab AFC-P

Easy Preparation & Processing

• Ready-mix powder system requiring no additional grinding.

• Simple coating solution preparation process.

• Compatible with standard tablet coating equipment.

High Coating Efficiency

• High solid content provides maximum spray coverage.

• Helps reduce coating time and improves productivity.

• Requires less quantity compared to many conventional film coating materials.

Superior Tablet Appearance

• Produces smooth, uniform, and glossy coating.

• Creates an even and thin film layer.

• Suitable for engraved tablets with high-quality finishing.

Excellent Film Performance

• Flexible polymer system helps prevent film peeling.

• Improves mechanical stability of tablet coating.

• Does not delay dosage form dissolution time.

Film Coating Process Using Cotab AFC-P

Parameters Aqueous Film Coating System Hydroalcoholic Film Coating System

Use Level 2.0% - 3.0% w/w 2.0% - 3.0% w/w

Recommended Vehicle Demineralised / Distilled Water – 100% w/w Demineralised Water – 60% w/w + IPA – 40%

Batch Size 40.0 kg 40.0 kg

Punch Size 10/32” (Approx. 8 mm) 10/32” (Approx. 8 mm)

Average Tablet Weight 240 mg 240 mg

Cotab AFC-P Required at 2.50% 1.00 kg 1.00 kg

Frequently Asked Questions (FAQ)

1. What is Cotab AFC-P?

Cotab AFC-P is a premium P.V.A.-based ready-mix film coating system for pharmaceutical tablets. It contains polymers, plasticizers, pigments, and other functional excipients in a single powder blend, enabling easy preparation of coating suspension with water.

2. What are the key advantages of Cotab AFC-P?

Cotab AFC-P offers easy processing, high coating efficiency, smooth and uniform tablet appearance, excellent film flexibility, improved mechanical stability, and does not adversely affect tablet dissolution.

3. Which coating systems can be used with Cotab AFC-P?

Cotab AFC-P is suitable for both aqueous and hydroalcoholic film coating systems, providing flexibility based on product and process requirements.

4. What is the recommended coating level?

The recommended coating weight gain is 2.0%–3.0% w/w. For a 40 kg tablet batch at 2.5% weight gain, approximately 1.0 kg of Cotab AFC-P is required.

5. What are the recommended coating process parameters?

Typical process parameters for aqueous systems include air pressure of 2.0–3.0 kg/cm², pan speed of 8–12 RPM, bed temperature of 37–42°C, and inlet air temperature of 50–70 °C. Actual settings may be optimized according to equipment and product characteristics.

Note: Parameters may vary depending on coating facility, product nature, and average tablet weight.