Description

itrile Butadiene Rubber (NBR) for Sale – High-Quality Buna-N Elastomer

Nitrile Butadiene Rubber (NBR)—also called Buna-N or Perbunan—is a leading elastomer for sealing, automotive, hydraulic, and industrial applications. It offers excellent oil resistance, fuel compatibility, and mechanical durability, making it ideal for demanding environments.

NBR Grades by ACN Content

• High Nitrile (>45% ACN): Best oil and fuel resistance

• Medium Nitrile (30–45% ACN): Most common, balanced performance

• Low Nitrile (<30% ACN): Superior flexibility in cold climates (to –35°C)

Key Specifications

• Volatile Matter: ≤0.5%

• Ash Content: ≤0.8%

• ACN (B-AN): 32–36%

• Raw ML (100°C): 36–46

• Tensile Strength: ≥220 kgf/cm²

• Elongation: ≥420%

• 300% Modulus: 120–180 kgf/cm²

Main Benefits

• Strong resistance to oils, fuels, lubricants, fats

• Excellent abrasion, tear, and compression-set resistance

• Operating temperature: –35°C to +120°C

• Compatible with HFA/HFB/HFC fire-resistant hydraulic fluids

Applications

• Hydraulic and pneumatic seals

• O-rings, gaskets, hoses, and tubing

• Fuel system components

• Automotive and mechanical seals

• Industrial gloves, sheeting, rollers, and custom parts

Available NBR Variants

• XNBR: Higher strength & abrasion resistance

• NBR-PVC: Better aging, flame resistance, and mechanical strength

• Low-temperature NBR: Enhanced flexibility for cold environments