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EPDM rubber
EPDM (Ethylene Propylene Diene) is a synthetic rubber with excellent resistance to heat, weathering, ozone, UV radiation, and water. However, its poor resistance to oils and fuels may limit its use in some applications.
Weather Resistance
EPDM rubber is highly resistant to weathering, ozone, and UV radiation, making it ideal for use in outdoor applications. It can withstand extreme temperatures and maintain its flexibility and elasticity, even in harsh weather conditions.
Chemical Resistance
EPDM rubber is highly resistant to a wide range of chemicals, including acids, bases, and alcohols, making it suitable for use in applications that require resistance to chemical exposure.
Electrical Insulation
EPDM rubber has good electrical insulation properties, making it ideal for use in electrical applications such as wire and cable insulation.
Water Resistance
EPDM rubber has excellent water resistance, making it ideal for use in applications such as roofing membranes and pond liners.
Excellent Physical Properties
EPDM rubber has high tensile strength, good tear resistance, and excellent elongation properties, making it highly durable and long-lasting.
Low Compression Set
EPDM rubber has a low compression set, meaning it can maintain its shape and resilience even after being subjected to long-term compression.
Good Resistance to Steam and Heat
EPDM rubber has good resistance to steam and heat, making it ideal for use in applications such as steam hoses, gaskets, and seals.
Pros of EPDM rubber:
- Excellent weather resistance
- Excellent water resistance
- Good chemical resistance
- Excellent physical properties
- Good electrical insulation properties
- Good resistance to steam and heat
- Low compression set
Cons of EPDM rubber:
- Poor oil resistance
- Limited temperature range
- Limited abrasion resistance
EPDM vs. SBR
Chemical Resistance
EPDM rubber has better chemical resistance than SBR rubber. EPDM is resistant to acids, alkalis, and polar solvents, while SBR has limited resistance to chemicals and is not recommended for use with oils and solvents.
Weather Resistance
EPDM rubber has superior weather resistance than SBR rubber. EPDM can withstand exposure to UV radiation, ozone, and extreme temperatures better than SBR.
Cost
SBR rubber is less expensive than EPDM rubber, making it a popular choice for applications where cost is a significant factor.
Mechanical Properties
SBR rubber has better abrasion resistance and tensile strength than EPDM rubber, making it a popular choice for applications that require good mechanical properties.
Electrical Properties
EPDM rubber has better electrical insulation properties than SBR rubber, making it suitable for electrical and electronic applications.
EPDM rubber is a better choice for applications that require good chemical and weather resistance, while SBR rubber is a better choice for applications that require good mechanical properties at a lower cost.
EPDM vs. NBR (Nitrile)
Chemical Resistance
EPDM rubber has better chemical resistance than NBR rubber, particularly against acids, bases, water, and ozone. NBR rubber, on the other hand, has better resistance to oils and fuels.
Temperature Range
EPDM rubber can withstand a wider range of temperatures than NBR rubber. EPDM rubber can handle temperatures ranging from -50°C to +150°C, while NBR rubber can handle temperatures ranging from -40°C to +120°C.
Physical Properties
EPDM rubber has excellent physical properties such as high tensile strength, good tear resistance, and excellent elongation properties, while NBR rubber has good physical properties such as high abrasion resistance and good oil resistance.
Electrical Insulation
EPDM rubber has better electrical insulation properties than NBR rubber, making it suitable for electrical applications.
EPDM rubber is more suitable for applications that require excellent weather resistance, chemical resistance, and electrical insulation, while NBR rubber is more suitable for applications that require good oil and abrasion resistance.
EPDM vs. NR (Natural)
Chemical Resistance
EPDM rubber has better chemical resistance than NR rubber, particularly against acids, bases, and ozone. NR rubber is more susceptible to chemical attack and degradation.
Temperature Range
EPDM rubber can withstand a wider range of temperatures than NR rubber. EPDM rubber can handle temperatures ranging from -50°C to +150°C, while NR rubber can handle temperatures ranging from -60°C to +80°C.
Physical Properties
NR rubber has good physical properties such as high elasticity, good tear resistance, and good abrasion resistance, while EPDM rubber has high tensile strength, good tear resistance, and excellent elongation properties.
Weather resistance
EPDM rubber has excellent weather resistance, ozone resistance, and UV resistance, while NR rubber is more susceptible to weathering and ozone degradation.
EPDM rubber is more suitable for applications that require good weather resistance, chemical resistance, and higher temperature range, while NR rubber is more suitable for applications that require high elasticity, and good tear resistance.
EPDM vs. CR (Neoprene)
Chemical Resistance
EPDM rubber has better chemical resistance than CR rubber, particularly against acids, bases, and ozone. CR rubber is more resistant to oils and fuels.
Temperature Range
EPDM rubber can withstand a wider range of temperatures than CR rubber. EPDM rubber can handle temperatures ranging from -50°C to +150°C, while CR rubber can handle temperatures ranging from -40°C to +120°C.
Physical Properties
EPDM rubber has excellent physical properties such as high tensile strength, good tear resistance, and excellent elongation properties, while CR rubber has good physical properties such as high resistance to abrasion and tearing, and good resilience.
Electrical Insulation
EPDM rubber has better electrical insulation properties than CR rubber, making it suitable for electrical applications.
Weather Resistance
EPDM rubber has excellent weather resistance, ozone resistance, and UV resistance, while CR rubber has good weather resistance but is less resistant to ozone and UV radiation.
EPDM rubber is more suitable for applications that require good weather resistance, chemical resistance, and electrical insulation, while CR rubber is more suitable for applications that require good resistance to oils and fuels, and high resistance to abrasion and tearing.
EPDM vs. FKM (Viton)
Chemical Resistance
FKM rubber has better chemical resistance than EPDM rubber, particularly against aggressive chemicals, fuels, and oils. EPDM rubber, on the other hand, has better resistance to acids, bases, and ozone.
Temperature Range
FKM rubber can withstand higher temperatures than EPDM rubber. FKM rubber can handle temperatures ranging from -20°C to +200°C, while EPDM rubber can handle temperatures ranging from -50°C to +150°C.
Physical Properties
FKM rubber has excellent physical properties such as high tensile strength, good tear resistance, and good compression set, while EPDM rubber has excellent elongation properties, good tear resistance, and high tensile strength.
Electrical Insulation
EPDM rubber has better electrical insulation properties than FKM rubber, making it suitable for electrical applications.
Weather Resistance
EPDM rubber has excellent weather resistance, ozone resistance, and UV resistance, while FKM rubber has good resistance to weathering and ozone degradation.
Cost
FKM rubber is generally more expensive than EPDM rubber, making it a less cost-effective option for certain applications.
FKM rubber is more suitable for applications that require excellent chemical resistance, high temperature resistance, and good physical properties, while EPDM rubber is more suitable for applications that require good weather resistance, electrical insulation, and moderate temperature range.
EPDM vs. MQ (Silicone)
Temperature Range
EPDM rubber can withstand a wider range of temperatures than MQ rubber. EPDM rubber can handle temperatures ranging from -50°C to +150°C, while MQ rubber can handle temperatures ranging from -40°C to +125°C.
Chemical Resistance
EPDM rubber has better chemical resistance than MQ rubber, particularly against acids, bases, and ozone. MQ rubber, on the other hand, has better resistance to oils and fuels.
Physical Properties
EPDM rubber has excellent physical properties such as high tensile strength, good tear resistance, and excellent elongation properties, while MQ rubber has good physical properties such as high elasticity, good compression set, and good impact resistance.
Weather Resistance
EPDM rubber has excellent weather resistance, ozone resistance, and UV resistance, while MQ rubber has good weather resistance but is less resistant to ozone and UV radiation.
Electrical Insulation
EPDM rubber has better electrical insulation properties than MQ rubber, making it suitable for electrical applications.
EPDM rubber is more suitable for applications that require good weather resistance, chemical resistance, and higher temperature range, while MQ rubber is more suitable for applications that require high elasticity, and good impact resistance.
