Neoprene Rubber
General Properties
Durometer Range (Shore A) | 20-95 |
Tensile Strength Range (P.S.I / MPA) | 200-3000 / 1.4-20.5 |
Elasticity (Max. %) | 600 |
Compression Resistance | Good |
Elasticity - Rebound | Good |
Abrasion Resistance | Excellent |
Tear Resistance | Good |
Solvent Resistance | Good - Excellent |
Oil Resistance | Good - Excellent |
Low Temperature Use (C°) | -35° to -40° |
High Temperature Use (C°) | Up to 120° |
Aging - Weather Conditions - Sunlight | Poor |
Adhesion to Metals | Good - Excellent |
Properties
Nitrile rubber is a copolymer of butadiene and acrylonitrile (ACN). The butadiene segment in nitrile allows for flexibility and low-temperature resilience in the compound. It also contains an 'unsaturated' double bond that forms cross-links during vulcanization. This unsaturated double bond will also be the primary attack point for chemicals, heat, and oxidation.
The acrylonitrile segment, the second part of nitrile rubber, provides the compound with fuel and oil resistance, hardness, abrasion resistance, and tensile strength. Increasing the acrylonitrile content in a compound enhances its heat resistance and gas impermeability. The ACN content of nitrile rubber typically ranges between 18% and 45%, and a general-purpose nitrile compound usually contains around 34%. By selecting an elastomer with balanced properties, nitrile rubber can be used in a wide range of applications depending on individual needs.
Nitrile (Buna-N) is a general-purpose oil-resistant polymer with good resistance to solvents, oil, water, and hydraulic fluids. Nitrile rubber also exhibits good compression set, abrasion resistance, and tensile strength. Nitrile should not be used in applications involving highly polar solvents such as acetone, MEK, ozone, chlorinated hydrocarbons, and nitro hydrocarbons.
The acrylonitrile segment, the second part of nitrile rubber, provides the compound with fuel and oil resistance, hardness, abrasion resistance, and tensile strength. Increasing the acrylonitrile content in a compound enhances its heat resistance and gas impermeability. The ACN content of nitrile rubber typically ranges between 18% and 45%, and a general-purpose nitrile compound usually contains around 34%. By selecting an elastomer with balanced properties, nitrile rubber can be used in a wide range of applications depending on individual needs.
Nitrile (Buna-N) is a general-purpose oil-resistant polymer with good resistance to solvents, oil, water, and hydraulic fluids. Nitrile rubber also exhibits good compression set, abrasion resistance, and tensile strength. Nitrile should not be used in applications involving highly polar solvents such as acetone, MEK, ozone, chlorinated hydrocarbons, and nitro hydrocarbons.
Applications
The properties of nitrile rubber make it an excellent solution for sealing applications. The popularity of nitrile material stems from its excellent resistance to petroleum products and its ability to be compounded for service up to 120°C. With these temperature resistances, the correct nitrile rubber compounds can withstand all but the most severe automotive applications. Other applications where nitrile rubber properties are beneficial include custom compounded and shaped parts.
- Oil resistant applications
- Low temperature applications
- Automotive, marine and aircraft fuel systems
- Nitrile roll covers
- Hydraulic hoses
- Conveyer belting
- Nitrile tubing