Partners in Co-creation

As demand for 5G, 6G, and high-frequency, high-speed transmission continues to grow rapidly, the electronics materials industry faces increasingly stringent requirements for low dielectric loss. Conventional materials typically achieve low dielectric properties by increasing molecular weight — but this trade-off raises viscosity and complicates processing, creating a persistent tension between electrical performance and manufacturability.

Through its proprietary liquid rubber technology, LCY helps the electronics materials industry overcome this challenge of balancing low dielectric loss with processability. By leveraging low molecular weight design, controlled microstructure, and molecular arragment, LCY has developed a liquid rubber solution that combines high flowability, low dielectric loss, and processing stability. This enables customers to reduce formulation viscosity, improve process efficiency, and maintain excellent electrical performance — accelerating the development and scale-up of high-performance electronic materials.

Balancing Low Dielectric Performance and Processability: LCY Identifies a Core Raw Material Challenge in the Electronics Materials Market

As the electronics and communications industry continues to upgrade, the demand for low dielectric loss in high-frequency, high-speed transmission materials is intensifying — particularly in 5G and 6G applications, where material properties directly affect signal transmission efficiency and product reliability. However, when conventional materials pursue low dielectric performance, they typically require low-polarity polymers and high-molecular-weight resins or rubbers to reduce dielectric loss. This high molecular weight simultaneously results in elevated viscosity, making encapsulant filling, circuit filling, and downstream processing significantly more difficult. Excessive formulation viscosity can lead to process instability, reduced product yield, and lower production efficiency.

Most commercially available liquid rubber products face a fundamental bottleneck: low dielectric performance and processability cannot be optimized simultaneously. Even at similar molecular weights, products can differ markedly in flowability, compatibility, and dielectric loss behavior. For electronics materials customers, achieving low dielectric properties while maintaining process stability and manufacturing efficiency is a central challenge in materials development.

Low-Molecular-Weight Liquid Rubber to Address Processing Challenges; Controlled Molecular Architecture and Microstructure Design to Improve Dielectric Performance

To address the long-standing trade-off between low dielectric performance and processability in the electronics materials industry, LCY's R&D team developed a liquid rubber solution featuring high flowability and low dielectric loss through three integrated design strategies: low molecular weight design, controlled molecular microstructure, and well molecular arrangement.

The product is based on an SBS liquid rubber, with molecular weight controlled in the range of approximately 5,000 to 6,000, enabling good flowability. This allows customers to effectively adjust overall formulation viscosity and resolve encapsulant filling and processing challenges, while retaining the dielectric properties and physical performance required by their end applications.

In addition, LCY's R&D team employs anionic polymerization technology to achieve greater control over microstructure and well molecular arrangement. Compared to free-radical polymerization methods, this approach enables more precise optimization of dielectric performance and crosslinking reactivity, allowing end products to achieve a better balance between low dielectric loss and processing stability.

Throughout the development process, LCY's R&D team worked in close collaboration with customers — iterating from laboratory data to actual production line conditions — to reduce adoption barriers and transition costs, ensuring the product meets real-world industrial requirements.

High Flowability, Low Dielectric Loss, and Processing Stability — with Dielectric Loss Performance That Outperforms the Market

This liquid rubber product belongs to the SBS liquid rubber series. It exhibits good flowability and effectively addresses processing challenges in electronic material formulations. Its defining advantage lies in the combination of low molecular weight design and controlled molecular microstructure technology, simultaneously delivering low dielectric loss and high processability.

Compared to conventional solid rubber products, this product significantly reduces formulation viscosity, improves flowability and compatibility, and enables customers to integrate it into existing production lines without changing their current processing equipment or parameters. In terms of electrical performance, this product achieves approximately 10–15% lower dielectric loss than equivalent products in the same category — a meaningful advantage for high-frequency, high-speed transmission electronic materials applications.

Significant Performance Gains; LCY's Responsiveness Earns Recognition

Following commercial adoption by customers, the product has delivered tangible improvements not only in dielectric loss performance relative to existing solutions, but also in flowability and processability — contributing to greater process stability and operational efficiency.

LCY's R&D team worked closely with customers to co-develop the optimal solution. Customers have specifically recognized LCY's ability to respond quickly to technical requirements, which has substantially improved development efficiency and collaboration flexibility.

Application Segments

•      5G/6G electronic communications materials

•      CCL (copper clad laminate) substrates

•      Electronic encapsulant materials

•      Flexible printed circuit (FPC) applications

•      Automotive electronic components

•      Tire manufacturing

Advancing the Next Generation of Electronic Materials — Together with LCY

As the high-frequency, high-speed electronics materials market continues to evolve, achieving both low dielectric loss and processing stability has become a critical requirement for materials development. Through specialized molecular design and liquid rubber technology, companies can effectively enhance material performance and process efficiency — positioning themselves to capture opportunities in the next generation of electronic materials.

If you are looking for a liquid rubber solution that combines low dielectric loss, high flowability, and superior processing stability, we welcome you to contact us to develop high-performance material applications that meet your market requirements.

For product information and technical collaboration inquiries, please contact us: https://www.lcycic.com/en/contact-us