Product Specification

Performance of NBR Rubber Seal Strips

1. Excellent Oil Resistance

This is the key characteristic of NBR. It has excellent resistance to mineral oils, animal and vegetable oils, and aliphatic hydrocarbons, and is not prone to swelling, hardening, or cracking.

2. Good Physical and Mechanical Properties

NBR material has high tear strength and wear resistance. The hardness is usually between 60 to 85shore A, and it can recover its original shape after compression at a certain temperature and time. This is a key indicator for measuring the durability of seals. NBR performs well at reasonable operating temperatures.

3. Aging Resistance

NBR has general ozone resistance and is prone to cracking in environments with high ozone concentrations. If excellent weather resistance is required, usually EPDM is the best chosen. In natural environments such as sunlight and rain, the performance will slowly decline over time, so it is not suitable for long-term outdoor exposure.

4. Other Properties

Airtightness: The dense structure gives it good gas sealing capabilities.

Chemical Resistance: It has a certain resistance to acids, alkalis, and salt solutions, but is not resistant to strong oxidizing agents (such as concentrated nitric acid, concentrated sulfuric acid) and polar solvents (such as ketones, esters).

Production Process of NBR Rubber Seal Strips

Raw Material Preparation and Mixing — Extrusion Molding — Vulcanization

— Cooling——package

Main Uses of NBR Solid Extruded Strips

Due to its excellent oil resistance, NBR solid extruded strips are ubiquitous in applications requiring the sealing of oils and greases, and are indispensable basic components in the industrial field.

Applications