What is NBR foam？

What is NBR Foam?

In the world of flexible materials, NBR foam stands out as one of the most versatile and high-performing options. Whether you're dealing with insulation, sealing, or cushioning, NBR foam delivers a dependable solution across industries.

But what is NBR foam, exactly—and why is it so widely used?

✅ What is NBR Foam?

NBR Foam, or Nitrile Butadiene Rubber Foam, is a closed-cell synthetic rubber made from NBR polymer. It is well-known for its superior oil resistance, thermal insulation, and durability under harsh conditions.

This foam rubber is created by expanding nitrile rubber with chemical blowing agents, producing a lightweight yet dense structure ideal for sealing, insulation, vibration damping, and gasketing.

Key Features of NBR Foam Rubber

■ Oil & Fuel Resistance – Excellent performance in oily, greasy, or solvent-heavy environments

■Sound & Vibration Absorption – Ideal for engine compartments, machinery, and HVAC

■Thermal Insulation – Maintains stability in -40°C to +105°C temperature ranges

■Water & Moisture Resistant – Closed-cell structure repels moisture infiltration

■Customizable – Available in sheets, rolls, tapes, or die-cut gaskets