Black Cat Carbon Black Launches New L21 Ultra-Wear-Resistant Low-Hysteresis Carbon Black, Breaking Tire Performance Bottlenecks and Empowering the Global High-End Tire Industry

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On April 10, 2026, Jiangxi Black Cat Carbon Black Co., Ltd., a subsidiary of Black Cat Carbon Black , a leading enterprise in China’s carbon black industry, officially launched its new L21 ultra-wear-resistant low-hysteresis carbon black. Achieving a breakthrough in fundamental material technology, the product successfully balances the three core tire performance attributes—rolling resistance, wear resistance and wet skid resistance—solving the long-standing “magic triangle” technical challenge in the industry. It provides critical core materials for the R&D and manufacturing of high-performance tires and new energy vehicle tires worldwide, and drives the domestic substitution and global supply of high-end carbon black materials.

1. Core Technological Breakthrough: Solving the Industry’s “Magic Triangle” Performance Challenge

In the global tire manufacturing sector, the three key performance indicators—rolling resistance, wear resistance and wet skid resistance—are difficult to optimize simultaneously, a paradox widely known as the “magic triangle”. Conventional technologies typically require sacrificing one performance to improve others.

Developed on Black Cat Carbon Black’s independent R&D platform, L21 carbon black achieves balanced performance through two core technological innovations:

• Microstructure Optimization: Using a proprietary production process, the product unifies high structure characteristics with a wide aggregate size distribution, forming a stable three-dimensional support network in the rubber system. This enhances reinforcement and wear resistance, optimizes filler dispersion, and reduces energy loss during dynamic tire deformation.

• Surface Functionalization Modification: Precise surface modification introduces highly reactive oxygen-containing functional groups, strengthening the bonding between carbon black and rubber molecular chains, reducing internal friction and slippage between molecular chains, and lowering hysteretic heat generation at the source.

2. Product Performance Advantages: Fully Aligned with Global High-End Tire Standards

Verified by professional testing, tires compounded with L21 carbon black deliver marked improvements in three core performance areas, fully meeting stringent global tire standards and the requirements of new energy vehicles:

• High Wear Resistance & Long Service Life: Superior wear performance to conventional ultra-wear-resistant carbon black, effectively extending tire service life and mileage.

• Low Rolling Resistance & Higher Energy Efficiency: Significantly reduced compression heat build-up and high-temperature loss factor, lowering rolling resistance to reduce fuel consumption in conventional vehicles and extend driving range in new energy vehicles.

• High Safety & Stability: Lower operating temperature enhances durability and driving safety under high-speed, heavy-duty and complex working conditions.

3. Industrialization & Scale-Up: Mass Production for Global Supply

High-end specialty carbon black has long relied on imports. Black Cat Carbon Black has completed the full industrialization layout for L21:

• 2020: Completed construction of the key production line for L21 carbon black.

• 2022: The project passed authoritative technical evaluation and was recognized as internationally advanced and domestically leading.

• 2023: The product entered full mass production, with a planned annual capacity of 20,000 metric tons by 2025.

L21 carbon black has been qualified and adopted in bulk by several leading Chinese tire manufacturers, successfully realizing domestic substitution for imported high-end carbon black. It is now available for stable supply to tire manufacturers worldwide.

4. Industrial Value: Driving the Green and Efficient Development of the Global Tire Industry

The global tire industry faces stringent energy efficiency regulations such as the EU Tire Labeling Regulation, while the new energy vehicle sector demands even lower rolling resistance tires. The large-scale production of L21 carbon black not only strengthens Black Cat Carbon Black’s competitiveness in the global high-end carbon black market, but also provides core material support for tire manufacturers worldwide to break technical bottlenecks and upgrade products, helping China’s tire industry chain move toward the high-end global value chain.

Going forward, Black Cat Carbon Black will continue to focus on R&D in carbon black and new materials, enhance its global supply and service system, and provide global customers with high-performance, sustainable carbon black material solutions to support the high-quality development of the global tire industry.

Disclaimer: The content of this article is compiled based on product information publicly released by Jiangxi Black Cat Carbon Black Co., Ltd. It is provided solely for industry observation and informational reference, and does not constitute a subjective evaluation or commercial endorsement of the product by the publisher.

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