Description

2-Propenenitrile, Polymer With 1,3-Butadiene And 2-Methyl-1,3-Butadiene is a synthetic rubber terpolymer, commonly known as nitrile rubber (NBR), valued for its excellent oil and fuel resistance combined with good mechanical properties. This material is critical for manufacturers requiring durable, flexible components that perform reliably in challenging chemical and thermal environments. It is primarily needed by the automotive, aerospace, oil & gas, and industrial sealing industries for gaskets, hoses, O-rings, and other molded goods.

Application

• Automotive Seals & Gaskets: Manufacturing oil seals, O-rings, and gaskets for engines and fuel systems due to superior resistance to oils, fuels, and greases.
• Fuel & Oil Hoses: Production of flexible hoses and tubing for fuel lines, hydraulic systems, and oil circulation where swelling resistance is paramount.
• Industrial Rollers & Belts: Used in printing, textile, and paper processing equipment where contact with oils and solvents is frequent.
• Footwear & Safety Apparel: Component in oil-resistant shoe soles, gloves, and protective clothing for industrial and laboratory settings.
• Adhesives & Sealants: Formulation of high-performance, flexible adhesives and sealants for automotive and construction applications.
• Molded & Extruded Goods: Fabrication of custom molded parts, diaphragms, and washers for machinery and fluid handling systems.
• Aerospace Components: Used in seals and gaskets for aircraft fuel and hydraulic systems, meeting stringent performance specifications.

Basic Information

Product Name	2-Propenenitrile, Polymer With 1,3-Butadiene And 2-Methyl-1,3-Butadiene
CAS No.	25135-90-4
Molecular Formula	(C3H3N·C4H6·C5H8)x
Molecular Weight	Polymer - varies by grade
Synonyms	Acrylonitrile Butadiene Rubber (NBR); Nitrile Rubber; Buna-N; NBR Rubber; Acrylonitrile-Butadiene Copolymer; Butadiene-Acrylonitrile Copolymer; Acrylonitrile Butadiene Terpolymer; 2-Propenenitrile polymer with 1,3-butadiene and 2-methyl-1,3-butadiene
EINECS	Contact for details

Quality Control

Our nitrile rubber products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards such as ASTM D2000 and SAE J200. Key parameters including acrylonitrile content, Mooney viscosity, and mechanical properties are strictly monitored. Certificates of Analysis (COA) detailing specific lot specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere or with minimal headspace to prevent degradation. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to pale yellow solid (crumb, strip, or bale)
Acrylonitrile Content	18% - 50% (varies by grade)
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 80
Specific Gravity	0.98 - 1.00
Tensile Strength	10 - 25 MPa
Elongation at Break	300% - 600%
Hardness (Shore A)	40 - 90
Volatile Matter	≤ 1.0%

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