Nitrile rubber (NBR) is a synthetic rubber copolymer made from acrylonitrile and butadiene. It has become one of the most important materials in the Rubber & Plastics industry, particularly valued for its excellent oil resistance, tensile strength, and abrasion resistance. For Southeast Asian exporters looking to sell on Alibaba.com, understanding the material properties and certification requirements is critical for market success.
The global nitrile rubber market continues to evolve in 2026, with regulatory requirements becoming more stringent across major export destinations. For exporters from Thailand, Vietnam, Malaysia, and other Southeast Asian countries, compliance documentation is no longer optional—it's a prerequisite for accessing premium buyer segments on Alibaba.com.
Nitrile Rubber Material Grades by Acrylonitrile Content
| Grade | Acrylonitrile Content | Key Characteristics | Best Applications | Cost Level |
|---|---|---|---|---|
| Low Grade | 18-28% | Better low-temperature flexibility, moderate oil resistance | Cold environment applications, general-purpose seals | Lower |
| Medium Grade | 28-38% | Balanced properties, good oil resistance and flexibility | Automotive parts, industrial hoses, general gaskets | Medium |
| High Grade | 38-50% | Excellent oil and fuel resistance, reduced low-temp flexibility | Fuel systems, oil seals, chemical-resistant applications | Higher |
| HNBR (Hydrogenated) | ≥90% saturation | Superior heat, ozone, and chemical resistance | High-performance automotive, aerospace, oil & gas | Premium |

