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Ethylene Bis Stearamide: An Effective Anti-Blocking Agent in Films and Coatings

by:Sainuo     2023-09-15

Ethylene Bis Stearamide: An Effective Anti-Blocking Agent in Films and Coatings


Anti-blocking agents play a crucial role in the prevention of unwanted film adhesion and blocking in various industries. Ethylene Bis Stearamide (EBS) has emerged as a highly effective anti-blocking agent in films and coatings. This article explores the properties of EBS, its applications, and its advantages over other anti-blocking agents.

Understanding Ethylene Bis Stearamide (EBS)

EBS is a synthetic wax that consists of long-chain aliphatic fatty acid derivatives. It is widely used in the polymer industry as an anti-blocking agent due to its excellent lubricating and anti-adhesive properties. This white, waxy substance remains solid at room temperature and is insoluble in water, making it ideal for various film and coating applications.

Properties of EBS

1. Lubricity:

EBS exhibits exceptional lubricity, reducing the coefficient of friction between surfaces. This property helps to minimize film sticking together and assists in the smooth unwinding of films during packaging processes.

2. Thermal stability:

EBS has a high melting point, allowing it to maintain its anti-blocking properties even under extreme temperature conditions. This makes it suitable for applications involving heat exposure during film production or storage.

3. Low volatility:

One of the significant advantages of EBS is its low volatility, making it an ideal choice for applications where long-term performance with minimal degradation is critical. It remains stable over time, reducing the need for frequent reapplication.

4. Chemical resistance:

EBS is highly resistant to many chemicals, making it suitable for various coating applications. It provides excellent protection against solvents, acids, and bases, ensuring film integrity in harsh environments.

Applications of EBS in Films and Coatings

1. Plastic films:

EBS is widely used as an anti-blocking agent in plastic films such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC). It prevents films from sticking together during winding, providing easy release and unwinding during manufacturing processes.

2. Packaging industry:

In the packaging industry, EBS acts as a vital anti-blocking agent in films used for food packaging, pharmaceutical packaging, and other consumer goods. It improves the overall packaging efficiency and enhances the consumer experience by preventing film adhesion and ensuring easy handling.

3. Coatings:

EBS finds extensive applications in coatings, including paints, varnishes, and lacquers. It acts as a flow control additive, improving the leveling properties of coatings and reducing surface defects. Additionally, EBS enhances scratch resistance and imparts a smooth and glossy appearance to the coated films.

4. Printing industry:

EBS is widely used as an anti-blocking agent in the printing industry, especially in ink formulations. It prevents the sticking of printed sheets, allowing for easy separation and efficient stacking during production processes.

Advantages of EBS over other Anti-Blocking Agents

1. Better anti-blocking efficiency:

Compared to other anti-blocking agents, EBS provides superior anti-blocking efficiency, thereby reducing film adhesion and minimizing the risk of blocking.

2. Enhanced thermal stability:

EBS exhibits remarkable thermal stability, allowing it to maintain its anti-blocking properties even at elevated temperatures. This makes it an excellent choice for applications where heat resistance is crucial.

3. Compatibility with various polymers:

EBS is compatible with a wide range of polymer matrices, including PE, PP, PVC, and more. This versatility makes it an attractive choice for industries working with different types of films and coatings.

4. Improved film appearance:

EBS not only prevents film adhesion but also improves the appearance of films and coatings. It imparts a glossy finish to the surfaces, enhancing their overall aesthetic appeal.

5. Cost-effective solution:

In comparison to other anti-blocking agents, EBS offers a cost-effective solution due to its superior performance and long-lasting effects. It requires minimal usage, resulting in reduced production costs for manufacturers.


Ethylene Bis Stearamide (EBS) has proven to be an effective anti-blocking agent in films and coatings, offering enhanced performance, improved film appearance, and cost-effective solutions across various industries. Its excellent anti-blocking efficiency, thermal stability, and compatibility with different polymers make it a preferred choice for manufacturers seeking to enhance their product quality and production efficiency. As the demand for anti-blocking agents continues to rise, EBS is expected to play a crucial role in the future of film and coating applications.

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