Are you looking for the best EPDM rubber manufacturers in China? With China being a global leader in the rubber industry, choosing the right supplier can be overwhelming. In this article, we’ll compare the top EPDM rubber factories in China, highlighting their unique characteristics, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

EPDM vs Natural Rubber Manufacturer in China

Product Details: Natural rubber is derived from the latex sap of the Hevea brasiliensis tree, known for its high tensile strength, tear resistance, and elasticity. EPDM, on the other hand, is a synthetic rubber made from ethylene, propylene, and diene monomers, offering superior resistance to heat, ozone, weathering, and chemicals.

Pros:
– Natural Rubber: High tensile strength, tear resistance, elasticity, good process…
– EPDM: Excellent resistance to heat, ozone, weathering, and chemicals. Suitable f…

Cons:
– Natural Rubber: Less resistant to chemicals and oils, susceptible to ozone crack…
– EPDM: Poor mechanical properties without compounding, may not bond well with som…

All About EPDM Rubber – Properties, Applications and Uses

Product Details: EPDM (Ethylene Propylene Diene Monomer) rubber is a synthetic material known for its durability, flexibility, and resistance to harsh environmental conditions. It is a copolymer of ethylene and propylene with a small amount of diene monomer, allowing for crosslinking through vulcanization. EPDM rubber is highly versatile and used in various industries such as construction, automotive, and industrial applications. It is employed in roofing membranes, automotive seals and hoses, HVAC systems, and electrical insulation due to its excellent weathering, ozone, and chemical resistance[1][2][3].

Pros:
– Excellent durability and flexibility across a broad temperature range
– High resistance to weathering, ozone, and UV light
– Good chemical resistance to acids, alkalis, and other corrosive substances
– Excellent electrical insulation properties
– Low maintenance requirements and long lifespan
– Cost-effective due to minimal maintenance and long durability
– Adheres easily to metals and fabrics
– Good tear and abrasion resistance

Cons:
– Incompatible with some asphalt shingles, which can result in roof damage
– Not resistant to petroleum-based substances
– May require specific formulations to achieve optimal properties

What is EPDM Rubber?

Product Details: EPDM rubber, or Ethylene Propylene Diene Monomer rubber, is a high-density synthetic rubber made from ethylene, propylene, and a diene monomer. It is known for its durability, flexibility, and resistance to UV, ozone, weathering, and various chemicals. EPDM is widely used in automotive, construction, industrial, and HVAC applications due to its excellent low-temperature properties and stability in extreme temperatures.

Pros:
– Durable and flexible
– Resistant to UV, ozone, weathering, and aging
– Excellent low-temperature properties, withstanding temperatures as low as -60°F…
– High water resistance
– Good electrical insulation properties
– Versatile and suitable for many industries and applications
– Cost-effective alternative to silicone materials
– Does not bloom, maintaining color over time

Cons:
– Poor flame resistance without blockers
– Not resistant to mineral oils or petroleum oils, which can cause deterioration
– Difficult to achieve a strong rubber-to-metal bond
– Not recommended for applications involving continuous contact with petroleum-bas…
– Not suitable for food-based applications or exposure to bituminous materials lik…

What is EPDM rubber?

Product Details: EPDM rubber, or Ethylene Propylene Diene Monomer, is a synthetic rubber formed by polymerizing ethylene, propylene, and a diene monomer. It contains between 3% – 9% non-conjugated diene monomers, enabling crosslinking for rubber hardening through vulcanization. EPDM offers good low-temperature properties, standing up to -58°F (-50°C), and withstands temperatures of up to 302°F (150°C) while remaining flexible. It has a chemically saturated backbone, making it extremely resistant to the elements, including UV and ozone. EPDM also provides excellent electrical insulation and adheres easily to metals, making it ideal for seals and insulating cables and wires.

Pros:
– Excellent resistance to UV, ozone, weathering, and aging
– Good low-temperature properties, standing up to -58°F (-50°C)
– Withstands temperatures of up to 302°F (150°C) while remaining flexible
– Excellent electrical insulation
– Adheres easily to metals, ideal for seals
– Good anti-vibration capabilities
– Excellent resistance to steam

Cons:
– Poor oil resistance, degrades with hydrocarbon oils and solvents
– Cannot stand up to bituminous materials like asphalt shingles
– Poor flame resistance without blockers

Ethylene Propylene Diene Monomer EPDM Rubber

Product Details: EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber made by polymerizing ethylene, propylene, and a diene monomer. It is known for its durability, flexibility, and resistance to various environmental factors. EPDM has a wide temperature operating range, from -58°F to 302°F (-50°C to 150°C), and is highly resistant to UV, ozone, and weathering. It is available in both solid and closed-cell sponge forms and can be customized for various applications through different formulations and manufacturing processes.

Pros:
– Excellent resistance to UV exposure, ozone, aging, and weathering.
– Good chemical resistance to acids, alkaline solutions, and many other chemicals.
– High water resistance and excellent steam resistance.
– Good to excellent adhesion to metals and rigid materials.
– Wide temperature operating range (-60°F to 350°F or -51°C to 177°C).
– Excellent electrical insulation properties.
– Good vibration dampening and noise reduction capabilities.

Cons:
– Poor resistance to mineral oils, petroleum oils, and hydrocarbon solvents.
– Difficult to achieve a strong rubber-to-metal bond.
– Limited flame resistance.
– Degradation when in contact with bituminous materials like asphalt shingles.
– Poor resistance to fuel, aliphatic and aromatic hydrocarbons.

Ethylene-propylene diene rubber (EPDM) in China

Ethylene Propylene Diene Monomer Rubber – an overview

Product Details: EPDM (Ethylene Propylene Diene Monomer) rubber is a synthetic rubber made from ethylene, propylene, and diene monomers. It is known for its durability, flexibility, and resistance to UV exposure, ozone, aging, weathering, acids, and many other chemicals. EPDM can withstand temperatures from -50°C to 150°C and is highly resistant to water and moisture. It is available in various hardness ranges (30-90 Shore A) and has good adhesion to metals and rigid materials. EPDM is used in automotive, construction, industrial, and consumer goods applications, including seals, gaskets, roofing, and insulation[1][2][3].

Pros:
– Durable and flexible
– Resistant to UV exposure, ozone, aging, weathering, acids, and many other chemic…
– Wide temperature operating range (-50°C to 150°C)
– Highly resistant to water and moisture
– Good adhesion to metals and rigid materials
– Excellent electrical insulation
– Anti-vibration capabilities
– Low maintenance costs
– Suitable for outdoor applications

Cons:
– Poor oil resistance and degrades with exposure to mineral oils or petroleum oils
– Difficult to make a strong rubber-to-metal bond
– Does not possess good flame resistance
– Degrades when in contact with bituminous materials like asphalt shingles
– Not suitable for applications involving exposure to petroleum-based oils and fue…

EPDM – Ethylene Propylene Diene Rubber

World’s largest EPDM plant slated for China

Product Details: The world’s largest EPDM (ethylene propylene diene monomer) plant, built by Lanxess in Changzhou, Jiangsu Province, China, has a capacity of 160,000 metric tons per year. The plant is part of a €235 million investment, which is the largest investment Lanxess has made in China. The plant is expected to start up in 2015 and will produce ten premium grades of EPDM using the Keltan ACE technology. EPDM is used in various industries, including automotive (door sealants, windscreen wipers), plastics modification, cable and wire, construction, and oil additives. It is known for its low density, good resistance to heat, oxidation,

chemicals, and weathering, as well as good electrical insulation properties.

Pros:
– Reduces energy requirements for production due to the Keltan ACE catalyst techno…
– Does not require catalyst extraction due to high catalyst efficiency.
– Enables the manufacture of new EPDM rubber grades such as oil-extended EPDM and…
– Contributes to reducing energy consumption and CO2 emissions.
– Meets the growing demand in China, especially in the automotive and construction…

Cons:
– High initial investment of €235 million.
– Dependence on local and global market demand, which can be volatile.

High Grade EPDM Rubber Sheet 70° Shore

Product Details: High Grade EPDM Rubber Sheet 70° Shore is available in peroxide cured or sulphur cured options. It has a hardness of 70° Shore A ± 5°, with tensile strength of 9 N/mm² for peroxide cured and 7 N/mm² for sulphur cured. The elongation at break is 200% for peroxide cured and 250% for sulphur cured. The material has excellent weathering and ozone resistance, and it is suitable for high temperature applications with a working temperature range of -40°C to +120°C. It is available in thicknesses from 1mm to 40mm and can be supplied in full rolls, strip cut lengths, or

bespoke gaskets and shapes.

Pros:
– Outstanding weather and ozone resistance
– Long lasting
– Excellent temperature resistance (-40°C to +120°C)
– Good physical characteristics
– Superior resistance to heat ageing and compression set for peroxide cured option
– Superior tensile and tear strength for sulphur cured option
– Suitable for high temperature applications
– Available in various formats such as full rolls, strip cut lengths, and bespoke…

Cons:
– Peroxide cured option may not offer the same level of tensile and tear strength…
– Sulphur cured option has a higher compression set compared to the peroxide cured…
– Potential for colour change or ‘bloom’ in sulphur cured option

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About EPDM Rubber Characteristics in Chinese Factories

What are the key characteristics of EPDM rubber produced in Chinese factories?

EPDM rubber from Chinese factories is known for its durability and versatility. It offers high resistance to heat, ozone, and abrasive chemicals, making it ideal for harsh environments. This rubber also has a broad molecular weight distribution and high diene content, which enhance its processing and physical properties.

How does EPDM rubber perform in various environmental conditions?

EPDM rubber is highly resilient against extreme temperatures and chemical exposure. It maintains its flexibility in cold conditions and remains stable in high temperatures, making it suitable for applications such as weather seals, hoses, and belts. Its ozone resistance is also a significant advantage, ensuring it lasts longer in outdoor environments.

What are the common applications of EPDM rubber in Chinese manufacturing?

You’ll find EPDM rubber widely used in several industries. It’s common in automotive parts like seals, hoses, and belts. In construction, it’s used for waterproofing membranes, building profiles, and pipe seals. Consumer goods, such as sports equipment, appliance hoses, and garden hoses, also benefit from EPDM rubber’s properties.

How is EPDM rubber processed and manufactured in Chinese factories?

EPDM rubber is manufactured using advanced technologies like the advanced molecular catalyst (AMC) process. This method allows for tailored molecular architecture, resulting in ultra-high molecular weight and low gel content. The process also enables fast mixing, processing, and curing, making production more efficient and sustainable.

What are the benefits of using EPDM rubber over other types of rubber?

Using EPDM rubber offers several advantages. It provides better durability and resistance to environmental factors compared to other rubbers. Its high filler acceptance and improved dispersion of additives enhance its overall performance. Additionally, EPDM rubber is easier to customize and process, making it a preferred choice for many applications.