Rapid advances in industries such as 5G communications, new energy vehicles, and aerospace are driving electronic devices toward higher speeds, miniaturization, and high-density integration. As a result, electromagnetic interference (EMI) has become a critical challenge affecting the stability and safety of electronic equipment. Industry data indicates that the global electromagnetic compatibility shielding market will exceed USD 1.6 billion by 2029, with consumer electronics, automotive electronics, aerospace, and military electronics emerging as key growth sectors and demand for high-performance electromagnetic shielding materials continuing to surge.
In this invisible battle against electromagnetic interference, conductive silicone rubber and conductive ink are key protective materials that support the increasingly thin, lightweight, and flexible designs of modern electronics. Leveraging its full-chain capabilities from in-house conductive powder development to mass production of finished products, Betely integrates two core product technology platforms to provide customers across industries with one-stop, customized electromagnetic shielding material solutions.
Two Core Product Forms for Diverse Electromagnetic Shielding Requirements
To meet the electromagnetic shielding and structural requirements of different industries and electronic devices, Betely has developed two differentiated core product solutions designed to address a wide range of electromagnetic compatibility (EMC) protection challenges.
1. Conductive Silicone Rubber: EMI Shielding Combined with Environmental Sealing
Betely's conductive silicone rubber is based on high-quality silicone rubber modified with high-performance conductive fillers. It combines the elastic sealing properties of silicone rubber with efficient electrical conductivity and electromagnetic shielding performance.
According to customer requirements, the material can be processed into extruded strips, molded sheets, custom molded components, modified silicone compounds, and other forms.
This flexible product portfolio provides an integrated solution for both electromagnetic compatibility protection and environmental sealing, making it suitable for electronic equipment operating under a wide range of complex conditions.
2. Conductive Ink: An Ultra-Thin Protective Layer for Lightweight Electronics
To meet the shielding requirements of thin, lightweight, flexible, and precision electronic devices, Betely has developed a black conductive ink for copper foil applications.
The product uses a proprietary two-component reactive curing technology. With an ultra-thin dry film thickness of only 4-5 μm, it can achieve a surface resistance of ≤40 mΩ, providing stable and highly efficient electromagnetic shielding performance.
At the same time, the coating delivers a fine and uniform black appearance, combining functional shielding performance with decorative quality.
The conductive ink also demonstrates excellent durability and environmental adaptability. It can withstand at least 500 alcohol-wiping cycles and maintain stable performance after exposure to 60°C and 90% RH for 72 hours under high-temperature and high-humidity conditions.
In addition, the material is compatible with high-speed coating lines used in modern electronics manufacturing, making it suitable for efficient, large-scale production.
Full-Chain In-House Development and Manufacturing: Building Stronger Product Competitiveness
Unlike many manufacturers that focus on only one stage of the production process, Betely has established a fully integrated technical chain covering:
conductive powder → surface coating → formulation development → mass-production processes → comprehensive product validation
This vertically integrated approach enables Betely to control product quality and performance from the source while ensuring greater technological independence, process consistency, and product traceability.
1. In-House Development of Conductive Silver Powder
Conductive powder is one of the most critical raw materials in conductive and electromagnetic shielding materials. Betely has established independent R&D and large-scale manufacturing capabilities for conductive silver powder, allowing precise control over particle size distribution and microscopic morphology.
As one of the few companies in the industry with integrated R&D capabilities covering silver nitrate raw material processing, silver powder preparation, and slurry modification, Betely had obtained a cumulative total of 121 invention patents as of June 2026. Precisely controlled particle morphology helps create a uniform and stable conductive network within the material, providing a solid foundation for reliable electromagnetic shielding performance.
2. Precision Surface Coating Technology
With mature precision silver-plating technology, Betely can form uniform, dense, and strongly adherent conductive coatings on various substrate materials, including copper powder, glass microspheres, and aluminum powder. High-quality surface coating significantly improves the oxidation resistance and salt-spray resistance of conductive fillers. This helps extend the service life of conductive silicone rubber products and supports the long-term stable operation of electronic equipment, even under demanding environmental conditions.
3. Precision Formulation Development
With extensive expertise in silicone materials, Betely stands out among China silicone manufacturers for its development capabilities in medical-grade, flame-retardant, thermally conductive, and other high-performance silicone rubber formulations. For electromagnetic shielding applications, the R&D team carefully matches conductive fillers with silicone rubber matrices and continuously optimizes material formulations. For customers seeking reliable supplier silicone rubber solutions, Betely can support different material formulations and application requirements.
The goal is to achieve an optimal balance among multiple performance indicators, including:
This formulation capability enables Betely's conductive materials to meet the requirements of a wide variety of complex operating environments and application scenarios.
4. Quantified and Standardized Production Control
During mass production, Betely applies standardized and quantified process control throughout mixing, vulcanization, molding, and other key production stages. Critical process parameters are strictly controlled at every step to maintain consistent performance across different production batches while ensuring full quality traceability. Supported by mature and scalable specialty silicone rubber production capabilities, Betely can efficiently respond to customers requiring high-volume, continuous, and stable product supply.
5. Full-Cycle Laboratory Testing and Validation
Betely operates comprehensive professional laboratory facilities capable of conducting full-cycle validation from incoming raw material inspection and in-process testing to finished-product performance evaluation.
Testing capabilities cover key parameters such as:
This comprehensive testing system enables strict quality control throughout product development, pilot production, and full-scale manufacturing.
Broad Application Coverage Across High-End Industries
With stable and reliable material performance, Betely's electromagnetic shielding materials can support demanding applications across multiple industries. Key application areas include:
Optical Communications: Suitable for electromagnetic shielding and environmental sealing of optical modules, optical components, and optoelectronic transceiver assemblies, helping meet the stringent requirements of communications equipment for signal integrity and operational reliability.
Automotive Electronics: Designed for electromagnetic protection in new energy vehicle battery packs, electronic control systems, intelligent cockpits, vehicle connectivity modules, and other automotive electronic systems operating in complex electromagnetic environments.
Consumer Electronics: Widely applicable to smartphones, laptops, tablets, and other electronic devices, as well as shielding-layer coatings for flexible printed circuits (FPCs), supporting the industry's ongoing trend toward thinner, lighter, and more flexible device designs.
Military and Aerospace Electronics: Suitable for demanding applications such as radar systems, airborne electronic equipment, naval communications systems, satellite navigation equipment, and microwave waveguides where stringent shielding performance and long-term reliability are required.
Conclusion
As demand for electromagnetic shielding continues to grow and industry requirements become increasingly stringent, Betely leverages its vertically integrated R&D and manufacturing capabilities to provide professional, one-stop electromagnetic shielding solutions based on two core product categories: conductive silicone rubber and high-performance conductive ink.
From microscopic conductive powder morphology control and substrate surface modification to formulation optimization, standardized mass production, and full-cycle performance testing, Betely maintains control over every critical stage in the manufacturing of electromagnetic shielding materials.
With these full-chain capabilities, Betely can provide customers in optical communications, automotive electronics, consumer electronics, military, aerospace, and other advanced industries with more flexible customization, more consistent mass-production quality, reliable supply capabilities, and cost-effective electromagnetic shielding solutions.
