For professionals in the chemical industry, particularly those in rubber, plastics, and coatings sectors, carbon black is a fundamental material. However, the array of available grades, such as N220, N330, and N550, can sometimes be confusing. Understanding the distinct characteristics and optimal applications of each grade is crucial for making informed purchasing decisions. NINGBO INNO PHARMCHEM CO.,LTD., a reputable manufacturer and supplier, is here to guide you through the specifics of these vital chemical auxiliary agents.

The classification system for carbon black, often based on ASTM standards, primarily categorizes grades by their iodine absorption number and oil absorption number (OAN), which are indicators of surface area and structure, respectively. These physical properties directly influence how carbon black performs in various applications, impacting everything from rubber reinforcement to pigment dispersion.

Carbon Black N220: The Peak Performer

Considered a semi-reinforcing grade with a high surface area and structure, Carbon Black N220 excels in applications demanding exceptional abrasion resistance and tensile strength. It is the premium choice for high-performance tires, particularly in tread compounds where durability and wear life are paramount. Its fine particle size also contributes to excellent color depth, making it suitable for specialized coatings and plastics requiring intense black pigmentation. When you need to buy carbon black for extreme performance, N220 is the standard.

Carbon Black N330: The All-Rounder

Carbon Black N330 offers a balanced profile of reinforcing properties and processability. It features a moderate surface area and structure, providing good abrasion resistance and tensile strength, albeit slightly less than N220. This makes N330 a highly versatile option for a wide range of rubber products, including passenger car tires, conveyor belts, and molded goods. Its ease of dispersion and consistent quality as a chemical auxiliary agent also make it a popular choice for many ink and coating applications. Procuring N330 from a reliable supplier like NINGBO INNO PHARMCHEM ensures consistent batch-to-batch quality.

Carbon Black N550: Ease of Processing and Tinting

With its larger particle size and lower structure compared to N220 and N330, Carbon Black N550 is prized for its excellent processability and high tinting strength. It is widely used in tire inner liners, sidewalls, and in extruded rubber products where smooth surfaces and efficient manufacturing are key. In the realm of plastics, inks, and coatings, N550 is a favored pigment for its ability to achieve a desirable black color with good dispersibility and rheological control. Purchasing N550 from a trusted manufacturer like us guarantees excellent performance in your formulations.

Choosing Your Supplier

Selecting the right carbon black is critical, but so is choosing the right supplier. NINGBO INNO PHARMCHEM CO.,LTD. stands out as a leading manufacturer and supplier of high-quality carbon black in China. We offer competitive pricing, robust technical support, and a commitment to consistent product quality. Whether you are looking to purchase carbon black for rubber reinforcement, pigmenting plastics, or enhancing coatings, we have the expertise and products to meet your needs. Contact us today for samples and quotes.