Nitrile rubber O ring cord manufacturer in China
Nitrile rubber O ring cord, also known as NBR rubber cord or Buna-N cord, made from nitrile butadiene rubber (NBR), it has a very good resistance to oil, weather, UV, ozone, water and steam, is a sealing material widely used in industrial and automotive applications. Especially if have special requirements to oil resistance, nitrile rubber is the best choice.
Rubber O ring cord is commonly used for O-rings and packing applications, different sizes and hardness are available.
Nitrile rubber o ring cord sizes from 1.5mm to 35mm can be do, currently have mould of 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 9mm, 10mm, 12mm…. The smallest diameter we can do is about 1.5mm and the biggest diameter is about 35mm.
Hardness from 50shore A to 85shore A.
Typical operating temperature: -30°C to +100°C (continuous use)
Extended range (special grades): -40°C to +120°C or occasionally up to +130°C for short periods
Nitrile rubber O ring cord also can be joint to a ring, either hot joint or cold joint, hot joint need to make a corner tooling then vulcanized welding ends together, cold joint use glue make them adhesive together, but joint point also very strong.
Other material also available, such as EPDM, neoprene (CR), Silicone, VITON (FKM) etc. Send us detailed sizes and quantity, you can get a quote soon.
| Property | Details |
| Oil Resistance | Excellent (especially to mineral oils, diesel, fuels, and hydraulic fluids) |
| Fuel Resistance | Very good |
| Abrasion Resistance | Good |
| Tear Strength | Good |
| Compression Set | Moderate |
| Water Resistance | Good |
| Weather/Ozone Resistance | Poor (unless specially formulated) |
| Chemical Resistance | Resists many hydrocarbons, but not ideal for polar solvents |
| Elasticity & Flexibility | Moderate, less flexible in low temperatures |
Material: Nitrile, other material such as neoprene, EPDM, silicone, FKM also available
Color: Black, other color such as red, green, white, blue, yellow etc also can do.
Temperature: -40°C to +120°C
Thickness: the min1.5mm, the max 35mm
Hardness: 60 duro to 85duro
Package: cut to specific length or rolled a coil.
Properties: good oil resistance, good UV and weather resistance, ozone resistance, anti water and different chemicals etc
Application:
Automotive Industry
Industrial & Mechanical
Marine & Aerospace
Oil & Gas
MOQ: 1000M
To other speical rubber profiles also can be do further process, such as hot joint or cold joint a ring, hot vulcanized a corner, cut to specific length, punch holes, print words, slip coat etc.














