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NR-40 to 70 °CNR (Natural Rubber)A resilient rubber for flexible mechanical protection and vibration isolation.Material details
Typical operating range
-40 to 70 °C. Typical compounds: -40 to 70°C. Compound selection, sustained deformation and exposure determine the usable range. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good fatigue performance and high physical strength.
Limitations
- Avoid petroleum oils, greases, fuels and hydrocarbon solvents.
- Outdoor exposure needs an ozone- and weathering-qualified compound.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Flexible mounts and vibration-control components.
SBR-40 to 100 °CSBR (Styrene-Butadiene)A general-purpose rubber with good abrasion resistance for flexible mechanical components.Material details
Typical operating range
-40 to 100 °C. Typical compounds: -40 to 100°C. The usable range depends on the compound and service conditions; chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good abrasion resistance and useful resilience for general mechanical service.
Limitations
- General-purpose SBR has poor resistance to ozone and petroleum oils or fuels. Outdoor service requires appropriate protection or a qualified compound.
- Tear resistance, gas permeability and mechanical properties vary with the formulation.
Typical uses
- General-purpose molded parts where the selected compound meets the mechanical and environmental requirements.
NBR-30 to 100 °CNBR (Nitrile)An oil-resistant rubber suited to many petroleum-oil applications when ozone exposure is controlled.Material details
Typical operating range
-30 to 100 °C. Typical compounds: -30 to 100°C. Special low-temperature grades trade oil resistance against flexibility; hotter service can shorten life. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good mechanical strength and wear resistance.
- Useful resistance to mineral oils and many aliphatic hydrocarbons.
Limitations
- Acrylonitrile content changes oil resistance and cold flexibility.
- Avoid ozone exposure, aromatic/chlorinated solvents and glycol brake fluids.
- Hot water and alcohol-blended fuels require specially selected compounds.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Oil-exposed seals and grommets.
HNBR-30 to 140 °CHNBR (Hydrogenated Nitrile)An oil-resistant nitrile family with improved heat, weathering and mechanical performance.Material details
Also known as hydrogenated nitrile, HSN
Typical operating range
-30 to 140 °C. Typical compounds: -30 to 140°C. Wider cold or heat capability requires a specifically qualified grade. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- High strength and wear resistance.
- Good ozone and weathering resistance.
Limitations
- Performance depends on acrylonitrile content and hydrogenation level.
- Avoid chlorinated solvents, ketones, esters, ethers and strong acids without specific compound qualification.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Oil-exposed mechanical parts and higher-temperature sealing.
CR-35 to 90 °CCR (Neoprene)A balanced option for weather-exposed parts and selected low-aromatic mineral oils.Material details
Typical operating range
-35 to 90 °C. Typical compounds: -35 to 90°C. Higher-temperature or wider cold-service ranges require grade-specific qualification. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good ozone, weathering and aging resistance.
- Useful mechanical properties and cold flexibility.
Limitations
- Fuel and oil performance varies with aromatic content.
- Avoid aromatic/chlorinated solvents, ketones, esters and ethers.
- Hot-water suitability must be evaluated separately from the general temperature range.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Outdoor protective components and selected paraffinic-oil applications.
EPDM-45 to 130 °CEPDM RubberA strong candidate for outdoor weathering and water service, but unsuitable for petroleum oils and fuels.Material details
Typical operating range
-45 to 130 °C. Sulfur-cured general-purpose compounds: -45 to 130°C. Peroxide-cured grades can extend to 150°C when verified for the actual medium. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good weather, ozone and aging resistance.
- Good elasticity, cold flexibility and electrical insulation.
Limitations
- Avoid mineral oils, petroleum greases and fuels.
- Water and steam service depends on cure system, compound and temperature.
- Acid, cleaner and solvent formulations must be checked individually.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Outdoor cable-entry protection and appropriately specified water-system parts.
VMQ-60 to 200 °CVMQ (Silicone)A silicone family useful for temperature flexibility and electrical insulation, with low tear and abrasion resistance.Material details
Typical operating range
-60 to 200 °C. Typical general-purpose dry-heat screening range: -60 to 200°C. Some specially qualified heat-resistant grades permit brief exposure up to 300°C; this is not a continuous-service or liquid/steam rating.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good weather and ozone resistance.
- Broad temperature flexibility and electrical insulation.
Limitations
- Low tear and wear resistance require care during assembly and movement.
- Avoid hydrocarbon fuels, aromatic solvents and low-molecular-weight silicone oils.
- Water and lubricant service require the correct formulation.
- Food or medical compliance must be established for the actual compound.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Static insulating or protective grommets with limited abrasion.
FKM-20 to 200 °CFKM (Fluorocarbon)A heat- and oil-resistant family with good hydrocarbon compatibility and low gas permeability.Material details
Typical operating range
-20 to 200 °C. Typical compounds: -20 to 200°C. Certain grades extend colder or hotter; dynamic cold service is more restrictive than static service. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Useful resistance to petroleum oils, many fuels and aromatic hydrocarbons.
- Good ozone/weathering resistance and low gas permeability.
Limitations
- General-purpose grades have limited cold flexibility, especially during movement.
- General-purpose grades are not recommended for glycol brake fluids, ammonia gas, amines, strong alkalis or superheated steam. Resistance to organic acids depends on concentration and grade; dilute and concentrated acids must be assessed separately.
- Grade and cure system determine chemical performance.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Oil- and fuel-exposed parts at elevated temperatures.
FVMQ-50 to 175 °CFVMQ (Fluorosilicone)A fluorosilicone family offering better fuel and aromatic-oil resistance than standard silicone.Material details
Also known as fluorosilicone, fluoro silicone
Typical operating range
-50 to 175 °C. Typical compounds: -50 to 175°C. Lower-temperature service requires a specifically qualified grade. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Good cold flexibility, electrical properties and weather resistance.
- Useful resistance to selected fuels and aromatic hydrocarbons.
Limitations
- Low tear and wear resistance limit abrasive or dynamic service.
- Hot-air resistance is lower than standard silicone.
- Fuel blends and additives require individual qualification.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Selected static fuel-exposed parts requiring cold flexibility.
IIR-40 to 110 °CIIR (Butyl)A low-permeability rubber for selected water, polar-fluid and barrier applications.Material details
Also known as butyl, isobutylene isoprene
Typical operating range
-40 to 110 °C. Typical compounds: -40 to 110°C. Wider service ranges need compound-specific qualification. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Low gas and moisture permeability.
- Good electrical insulation and weather resistance.
Limitations
- Avoid mineral oils, petroleum greases, fuels and chlorinated hydrocarbons.
- Acid compatibility depends on the exact acid, concentration and temperature.
- Low permeability does not establish pressure capacity or zero leakage.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Membranes and selected barrier or water-service seals.
FFKM-25 to 240 °CFFKM (Perfluoroelastomer)A specialist family for demanding chemical environments, with performance that varies by grade.Material details
Also known as perfluoro rubber, Kalrez, Isolast
Typical operating range
-25 to 240 °C. General-purpose envelope: -25 to 240°C. Higher-temperature capability requires a specifically qualified grade and exposure duration. Chemical exposure can impose a lower limit.
General physical properties
- Weathering
- Ozone
- Petroleum oil
- Abrasion
- Tear
- Gas barrier
Strengths
- Broad potential chemical resistance and low swelling in many media.
Limitations
- Chemical resistance and high-temperature capability vary by grade.
- Water/steam service requires a qualified formulation.
- Some fluorinated refrigerants and PFPE lubricants can be unsuitable.
- Hardness, tensile strength, elongation and compression set vary by compound and test conditions.
Typical uses
- Specialist chemical-processing and temperature-critical seals.
Chemical compatibility at a glance
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Compare material families
General property ratings and typical operating ranges. Chemical compatibility depends on the specific medium and conditions.
| Material | Typical operating range | Weathering | Ozone | Petroleum oil | Abrasion | Tear | Gas barrier |
|---|---|---|---|---|---|---|---|
| NR (Natural Rubber) | -40 to 70 °C | ||||||
| SBR (Styrene-Butadiene) | -40 to 100 °C | ||||||
| NBR (Nitrile) | -30 to 100 °C | ||||||
| HNBR (Hydrogenated Nitrile) | -30 to 140 °C | ||||||
| CR (Neoprene) | -35 to 90 °C | ||||||
| EPDM Rubber | -45 to 130 °C | ||||||
| VMQ (Silicone) | -60 to 200 °C | ||||||
| FKM (Fluorocarbon) | -20 to 200 °C | ||||||
| FVMQ (Fluorosilicone) | -50 to 175 °C | ||||||
| IIR (Butyl) | -40 to 110 °C | ||||||
| FFKM (Perfluoroelastomer) | -25 to 240 °C |