COTAB E AQ

Enteric Coating Manufacturers in India.

We offer Cotab E AQ Enteric Coating Powder, an advanced aqueous enteric coating system specially developed for pharmaceutical formulations requiring reliable gastric protection and targeted intestinal drug release. Cotab E AQ is formulated using Methacrylic Acid Co-polymer Type C technology to provide effective acid resistance and controlled release performance.

The coating system forms a durable enteric barrier over tablets, protecting active ingredients from the acidic environment of the stomach and ensuring release only after reaching intestinal pH conditions. This helps improve drug stability, therapeutic effectiveness, and patient compliance.

Cotab E AQ is designed for aqueous coating applications, making it a safer and more environmentally friendly alternative to solvent-based enteric coating systems. The product can be reconstituted at 15.0% to 20.0% concentration using purified water and provides excellent coating efficiency with minimal processing complexity.

With a recommended coating weight gain of 7.0% to 8.0%, Cotab E AQ delivers uniform film formation, superior adhesion, smooth tablet appearance, and dependable enteric protection.

Other Details

• Usage: Medicine Tablet Coating

• Coating Type: Enteric Film Coating

• Polymer System: Methacrylic Acid Co-polymer Type C

• Purity: 99%

• Grade: Pharmaceutical / Medicine Grade

• Application: Tablet & Pellet Enteric Protection

• Packaging: Moisture Resistant Packaging

Technical Specification – Cotab E AQ Enteric Coating System

Parameter Specification

Product Name Cotab E AQ

Product Type Enteric Coating System

Polymer Base Methacrylic Acid Co-polymer Type C

Coating System Aqueous Film Coating

Reconstitution Level 15.0% – 20.0%

Solvent System Purified Water

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 E AQ

Process Step Description

1. Water Preparation Take the required quantity of purified water in a clean stainless-steel vessel.

2. Powder Addition Slowly add Cotab E AQ powder into the water under continuous stirring.

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

4. Filtration Filter the prepared suspension through a suitable mesh before use.

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

6. Spray Application Apply the coating suspension uniformly using controlled spray conditions.

7. Drying Process Maintain proper inlet temperature and airflow for efficient 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 C

Weight Gain 7.0% – 8.0%

Reconstitution Level 15.0% – 20.0%

Solvent System Purified Water

Application Equipment Conventional Tablet Coating Machine

Spray Rate Adjust to avoid overwetting

Drying Condition Controlled temperature & airflow

Key Features & Benefits

Effective Gastric Protection

Forms a strong enteric barrier that prevents premature tablet disintegration in acidic stomach conditions.

Targeted Intestinal Release

Supports drug release only after reaching the intestinal environment, enhancing therapeutic performance.

Aqueous Coating Technology

Water-based coating system eliminates the need for organic solvents and simplifies processing.

Excellent Film Formation

Provides smooth, uniform, and durable coating with superior adhesion characteristics.

Improved Drug Stability

Protects acid-sensitive active ingredients from degradation caused by gastric fluids.

Pharmaceutical Grade Quality

Manufactured using high-quality raw materials for consistent coating performance and batch-to-batch reliability.

FAQ’s of Cotab E AQ

Q1. What is Cotab E AQ Enteric Coating Powder used for?

A: Cotab E AQ is an aqueous enteric coating system used to protect pharmaceutical tablets and pellets from gastric acid and enable controlled drug release in the intestine.

Q2. What polymer base is used in Cotab E AQ?

A: Cotab E AQ is formulated using Methacrylic Acid Co-polymer Type C, which provides excellent acid resistance and enteric protection.

Q3. How is Cotab E AQ prepared for coating application?

A: Cotab E AQ is reconstituted at 15.0% to 20.0% concentration using purified water under continuous stirring to obtain a uniform coating suspension.

Q4. What is the recommended coating weight gain for Cotab E AQ?

A: The recommended coating weight gain is 7.0% to 8.0%, depending on the formulation and desired enteric performance.

Q5. How should Cotab E AQ be stored?

A: Cotab E AQ should be stored at room temperature in sealed moisture-resistant packaging away from direct sunlight and excessive humidity.