Introduction to JSJ BACOSIL® C368: Balancing Cost and Performance in Liquid Silicone Rubber

In the world of liquid silicone rubber (LSR) production, manufacturers often face the challenge of balancing performance and cost. Traditionally, this dilemma has been addressed by two distinct types of fumed silica: fumed silica and precipitated silica.

Fumed silica, produced through high-temperature hydrolysis of halosilanes in an oxyhydrogen flame, is an amorphous nano-silica known for its high purity, large specific surface area, and excellent dispersibility. Despite its higher production costs, fumed silica is the preferred choice for high-end LSR applications requiring superior reinforcement.

On the other hand, precipitated silica, made from sodium silicate and acid through precipitation and filtration processes, offers a cost-effective alternative. While it falls short in purity, specific surface area, and dispersibility compared to fumed silica, its affordability makes it suitable for standard LSR applications.

For years, LSR manufacturers have sought a solution that combines the cost advantages of precipitated silica with the high performance of fumed silica. JSJ BACOSIL® C368, developed by JSJ, bridges this gap by leveraging innovative precipitation technology to deliver exceptional performance at a lower cost, making it a game-changer for tear-resistant liquid silicone rubber applications.

JSJ BACOSIL® C368: Exceptional Dispersion and Tear Resistance

JSJ BACOSIL® C368 is a high-performance precipitated silica specifically designed for premium liquid silicone rubber applications. By addressing the common issue of agglomeration in traditional precipitated silica, BACOSIL® C368 achieves outstanding dispersibility while retaining the cost benefits of the precipitation process.

Through advanced reaction control and spray-drying techniques, JSJ has overcome the limitations of precipitated silica, reducing secondary agglomeration and ensuring uniform dispersion within the LSR matrix. This eliminates stress concentration caused by localized agglomeration, providing a robust structural foundation for high-stress transfer and exceptional tear resistance.

Key Features of BACOSIL® C368:

• Superior Dispersion: Overcomes agglomeration for uniform integration in LSR.

• High Tear Resistance: Enhances durability and performance in demanding applications.

• Cost Efficiency: Retains the affordability of precipitated silica while delivering near-fumed silica performance.

Performance Testing: Demonstrating Tear-Resistant Excellence

To showcase the superior tear resistance of JSJ BACOSIL® C368, JSJ conducted rigorous testing in real-world consumer scenarios. Below are the results of these tests:

1. Silicone Sheet Tear Test

A standard-sized silicone sheet prepared with BACOSIL® C368 was subjected to a controlled tear test using professional fixtures and testing equipment.

Video: BACOSIL® C368 Tear Test in Progress

Results:

• Significant external force was required to tear the sheet, with clear resistance observed during the process.

• The torn edge exhibited noticeable stretching deformation without brittle failure, demonstrating excellent toughness.

2. Scratch Resistance Test

The surface of a BACOSIL® C368-reinforced LSR product was scratched with a key for 100 consecutive passes.

Video: Scratch Resistance Demonstration

Results:

• No visible scratches or damage appeared on the surface.

• The material maintained excellent surface integrity, proving its suitability for high-wear applications.

3. Repeated Bending Test

A BACOSIL® C368-filled LSR product was subjected to 100 cycles of repeated bending, followed by pulling at the interface.

Video: Repeated Bending Demonstration

Results:

• No visible marks or damage were observed on the surface post-bending.

• The material exhibited minimal deformation during pulling and quickly returned to its original shape upon release, making it ideal for high-frequency bending scenarios.

Why BACOSIL® C368 is the Ideal Choice for High-End LSR Applications

Tear resistance is a critical factor in determining the durability and safety of LSR products. Insufficient tear strength can lead to rapid crack propagation, resulting in product failure or safety hazards, particularly in high-stakes industries like automotive and medical applications.

For example, in automotive engine seals, standard silicone gaskets are prone to tearing and oil leakage under high temperatures and vibrations. In contrast, BACOSIL® C368-reinforced seals offer superior tear resistance, extending service life and reducing maintenance costs.

Applications of BACOSIL® C368:

• Automotive: High-end sealing gaskets for engines and other components.

• Medical: Durable, food-contact-grade silicone rubber for medical devices.

• Industrial: High-performance LSR products requiring flexibility and durability.

JSJ: Your Partner for Customized High-Performance Silica Solutions

With over two decades of expertise in functional silica development, JSJ is committed to meeting the unique performance requirements of diverse high-end applications. BACOSIL® C368 is already in mass production, delivering reliable performance in automotive, medical, and food-contact-grade LSR applications.

JSJ offers end-to-end customization services, from formulation optimization and performance tuning to production implementation, ensuring that your LSR products meet the highest standards of quality and durability.

Conclusion: Elevate Your LSR Products with BACOSIL® C368

If you’re seeking a cost-effective, high-performance precipitated silica for tear-resistant liquid silicone rubber, JSJ BACOSIL® C368 is the solution. With its innovative technology, rigorous quality control, and customizable options, JSJ empowers manufacturers to achieve superior durability and performance while maintaining cost efficiency.

Partner with JSJ to unlock new possibilities in high-end LSR applications and strengthen your competitive edge in the market. Contact us today to explore how BACOSIL® C368 can transform your products.