Description

2-Propenenitrile, Polymer With 1,3-Butadiene, Hydrogenated is a high-performance, hydrogenated nitrile rubber (HNBR) polymer. This specialized elastomer offers exceptional resistance to heat, oil, and chemicals, making it a critical material for demanding sealing and mechanical applications. It is primarily sought by manufacturers in the automotive, aerospace, and oil & gas industries for components like seals, gaskets, hoses, and belts that require long-term reliability under harsh operating conditions.

Application

• Automotive Sealing Systems: Used in the production of high-performance shaft seals, O-rings, and gaskets for engines and transmissions due to its excellent heat and oil resistance.
• Oil & Gas Downhole Tools: Essential for seals and packers in drilling equipment, where resistance to sour gas (H2S), high pressures, and extreme temperatures is paramount.
• Industrial Hose and Belting: Serves as a key material for hoses conveying fuels, oils, and chemicals, and for synchronous timing belts requiring dimensional stability.
• Aerospace Components: Employed in seals and diaphragms for fuel systems and hydraulic applications, leveraging its wide service temperature range and durability.
• Roll Coverings and Industrial Rollers: Provides a durable, abrasion-resistant surface for rollers used in printing, paper, and steel processing.
• Molded Rubber Goods: Used for custom-molded parts requiring a combination of mechanical strength and fluid resistance.

Basic Information

Product Name	2-Propenenitrile, Polymer With 1,3-Butadiene, Hydrogenated
CAS No.	88254-10-8
Molecular Formula	(C3H3N·C4H6)x (Hydrogenated)
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Hydrogenated Nitrile Butadiene Rubber; HNBR; Highly Saturated Nitrile Rubber; HSN; Hydrogenated Acrylonitrile Butadiene Rubber; Therban® (Trade Name); Zetpol® (Trade Name); Hydrogenated NBR
EINECS	Contact for details

Quality Control

Our Hydrogenated Nitrile Rubber (HNBR) is manufactured under strict process controls to ensure batch-to-batch consistency. Quality is verified through a comprehensive suite of tests including acrylonitrile content, residual unsaturation (iodine value), Mooney viscosity, and mechanical property analysis. A Certificate of Analysis (COA) detailing specific grade specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and sources of heat or ignition. Under these conditions, the material has excellent shelf stability.

Specification

Item	Specification
Appearance	Off-white to pale amber pellets or sheets
Acrylonitrile Content	17% - 50% (Grade Dependent)
Residual Unsaturation (Iodine Value)	1 - 18 (Grade Dependent)
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 120 (Grade Dependent)
Specific Gravity	0.94 - 1.00
Ash Content	≤ 1.0%
Volatile Matter	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.