COTAB EN-S

Enteric Coating Manufacturers from India.

We offer Cotab EN-S Enteric Coating Powder, a high-performance solvent-based enteric coating system specially formulated using Methacrylic Acid Co-polymer Type B technology. The coating system is designed to provide effective gastric resistance and targeted drug release in the intestinal region, making it suitable for pharmaceutical products requiring delayed-release functionality. Methacrylic Acid Co-polymer Type B is widely used in enteric coating applications and is known for its excellent acid-resistant properties and reliable intestinal release characteristics.

Cotab EN-S forms a durable enteric film around tablets, preventing premature drug release in the acidic environment of the stomach while ensuring release at higher intestinal pH conditions. This helps protect acid-sensitive active pharmaceutical ingredients and improves therapeutic effectiveness.

The product is designed for organic solvent-based coating processes and can be reconstituted at 8.0% to 9.0% concentration using IPA 80% + MDC 20% solvent system. With a recommended coating weight gain of 7.0% to 8.0%, Cotab EN-S provides excellent film integrity, coating uniformity, and dependable enteric protection. Similar Type B enteric coating systems are commonly used at comparable coating levels for delayed-release applications.

Other Details

• Usage: Pharmaceutical Tablet Coating

• Coating Type: Enteric Film Coating

• Polymer Base: Methacrylic Acid Co-polymer Type B

• Purity: 99%

• Grade: Pharmaceutical Grade

• Application: Tablet & Pellet Enteric Protection

• Packaging: Moisture Resistant Packaging

Technical Specification – Cotab EN-S Enteric Coating System

Parameter Specification

Product Name Cotab EN-S

Product Type Enteric Coating System

Polymer Base Methacrylic Acid Co-polymer Type B

Coating System Solvent-Based Film Coating

Reconstitution Level 8.0% – 9.0%

Solvent System IPA 80% + MDC 20%

Recommended Weight Gain 7.0% – 8.0%

Application Pharmaceutical Tablets & Pellets

Film Property Acid Resistant & Uniform Film

Purity 99%

Shelf Life 2 Years

Storage Room Temperature

Film Coating Process Using Cotab EN-S

Process Step Description

1. Solvent Preparation Prepare IPA 80% + MDC 20% solvent mixture in a clean vessel.

2. Powder Addition Slowly add Cotab EN-S powder under continuous agitation.

3. Dispersion Process Continue mixing until a smooth and homogeneous coating suspension is obtained.

4. Filtration Filter the coating solution through a suitable mesh before application.

5. Tablet Loading Load tablets or pellets into the coating equipment.

6. Spray Application Apply the coating uniformly using controlled spray parameters.

7. Drying Process Maintain suitable airflow and temperature for efficient solvent evaporation and film formation.

8. Final Coating Continue coating until the desired weight gain of 7.0%–8.0% is achieved.

Recommended Coating Parameters

Parameter Recommended Range

Coating Type Enteric Film Coating

Polymer System Methacrylic Acid Co-polymer Type B

Reconstitution Level 8.0% – 9.0%

Weight Gain 7.0% – 8.0%

Solvent System IPA 80% + MDC 20%

Application Equipment Conventional Tablet Coating Machine

Spray Rate Adjust to avoid overwetting

Drying Condition Controlled temperature & airflow

Key Features & Benefits

Reliable Enteric Protection

Protects tablets from gastric acid and prevents premature drug release in stomach conditions.

Targeted Intestinal Release

Designed to release active ingredients after reaching the intestinal environment.

Excellent Film Formation

Provides smooth, uniform, and durable enteric coating with strong adhesion.

Improved Drug Stability

Protects acid-sensitive formulations from degradation caused by gastric fluids.

Consistent Coating Performance

Ensures reproducible coating quality and dissolution profiles across production batches.

FAQs of Cotab EN-S Enteric Coating Powder

Q1. What is Cotab EN-S used for?

A: Cotab EN-S is a solvent-based enteric coating system used to protect tablets from stomach acid and provide delayed drug release in the intestine.

Q2. Which polymer is used in Cotab EN-S?

A: Cotab EN-S is formulated using Methacrylic Acid Co-polymer Type B, a widely used enteric coating polymer for delayed-release applications.

Q3. How is Cotab EN-S prepared for coating application?

A: Cotab EN-S is reconstituted at 8.0% to 9.0% concentration using IPA 80% + MDC 20% solvent system under continuous stirring.

Q4. What is the recommended coating weight gain?

A: The recommended coating weight gain is 7.0% to 8.0% for achieving effective enteric protection and consistent dissolution performance.

Q5. What are the benefits of Methacrylic Acid Co-polymer Type B?

A: It provides excellent acid resistance, reliable intestinal release, strong film formation, and effective protection of acid-sensitive active ingredients.