Key Features of Vistalon EPDM:

1. Excellent Heat and Weather Resistance: Vistalon EPDM maintains flexibility and mechanical properties even at high temperatures and during long-term exposure to UV radiation, ozone, and environmental elements. It can function effectively in temperatures ranging from -50°C to 150°C.
2. Low Density and High Flexibility: EPDM is relatively lightweight and flexible, allowing it to be easily processed and molded into various shapes while maintaining its resilience.
3. Good Electrical Insulation: EPDM, including Vistalon grades, is a strong electrical insulator, making it suitable for electrical applications, such as cable insulation and rubber seals for electrical components.
4. Resistance to Chemicals and Polar Substances: Vistalon EPDM is highly resistant to a wide range of chemicals, including water, steam, alkalis, and acids. It is also compatible with many additives, which further enhances its versatility.
5. Good Aging Properties: EPDM products can maintain their physical properties and resist degradation over time, making them useful in long-lasting applications.
6. Wide Range of Processing Options: Vistalon EPDM can be processed using different manufacturing techniques such as extrusion, molding, calendaring, and injection molding. It also blends well with other rubbers and thermoplastics to improve performance or reduce costs.

Applications of Vistalon EPDM:

1. Automotive:
   • Weatherstripping and Seals: EPDM is commonly used for automotive door and window seals due to its flexibility and resistance to weathering, temperature extremes, and UV radiation.
   • Hoses and Tubing: Vistalon EPDM is used in coolant and heating system hoses due to its resistance to heat, ozone, and water-based fluids.
   • Vibration Dampers: EPDM’s flexibility and resilience make it ideal for engine mounts and other vibration-damping components.
2. Construction:
   • Roofing Membranes: EPDM rubber membranes are popular in the construction industry, particularly for flat and low-slope roofs, due to their durability and weather resistance.
   • Sealing and Gaskets: EPDM is commonly used for sealing in buildings, such as window seals, expansion joints, and weatherstripping, providing excellent long-term performance.
3. Electrical:
   • Cable Insulation: Due to its strong dielectric properties, Vistalon EPDM is used in insulating wires and cables in both industrial and consumer electronics applications.
4. Industrial:
   • Conveyor Belts and Belting: EPDM’s resistance to heat and chemical exposure makes it suitable for conveyor belts used in harsh industrial environments.
   • Gaskets and O-Rings: Vistalon is often used to produce O-rings and gaskets that need to withstand extreme temperatures and aggressive chemical environments.
5. Consumer Goods:
   • Appliance Components: EPDM rubber is used in many household appliances, including washing machine seals and hoses, because of its resistance to water and heat.
   • Sports and Playground Surfaces: EPDM granules are often used in sports surfaces, playground flooring, and impact-absorbing materials for safety.

Grades of Vistalon EPDM:

Vistalon comes in various grades that are formulated for specific applications. These grades differ in their ethylene-to-propylene ratio, molecular weight, diene content, and other properties, which determine their processing characteristics and performance. Some of the key characteristics to consider when selecting a Vistalon EPDM grade include:

• Mooney viscosity: A measure of the rubber’s viscosity that affects how it processes during manufacturing.
• Diene content: The type and amount of diene in the EPDM affect its ability to vulcanize and bond with other materials.
• Ethylene content: Higher ethylene content generally improves strength and crystallinity, while lower ethylene content offers more flexibility.

Benefits of Vistalon EPDM:

• Cost-Effective: Vistalon EPDM is a cost-effective alternative to other elastomers, especially in applications where long-term performance and environmental resistance are required.
• Blend Compatibility: It can be blended with other polymers (like polypropylene) to create thermoplastic elastomers (TPEs), which combine the properties of rubber and plastic and can be processed like plastics while retaining elastic properties.
• Environmentally Friendly: EPDM rubber is recyclable and widely used in products designed for environmental sustainability, such as green building materials and eco-friendly roofing systems.

Key Competitors:

Vistalon EPDM competes with other major EPDM manufacturers such as:

• Keltan (by ARLANXEO)
• Nordel (by Dow)
• Buna EP (by Lanxess)

Conclusion:

Vistalon EPDM is a versatile and widely used material in applications that demand durability, flexibility, and resistance to environmental factors. Its excellent aging properties, heat resistance, and ability to be tailored for specific applications make it a go-to material for industries ranging from automotive to construction and electrical.

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Key Features of Vistalon EPDM for Hose Applications:

1. Heat Resistance:
   • Vistalon EPDM can withstand temperatures ranging from -50°C to 150°C, making it ideal for hoses that encounter extreme heat, such as coolant hoses, heater hoses, and air intake hoses in automotive engines.
2. Chemical Resistance:
   • Vistalon EPDM is highly resistant to a wide variety of chemicals, including water, steam, glycol-based coolants, and mild acids and alkalis. This makes it a great material for hoses used in cooling systems, industrial fluid transfer, and brake systems.
3. Weather and Ozone Resistance:
   • Vistalon EPDM has excellent resistance to ozone, UV rays, and weathering, ensuring hoses maintain their flexibility and mechanical properties when exposed to outdoor elements, making it suitable for outdoor water hoses, garden hoses, and construction hoses.
4. Flexibility and Durability:
   • EPDM is known for its flexibility even at low temperatures, which helps hoses remain flexible and resistant to kinking or cracking. This feature is particularly beneficial for flexible hoses in tight spaces (e.g., engine compartments).
5. Aging and Oxidation Resistance:
   • Vistalon EPDM retains its properties over long periods, making hoses that last longer and require less frequent replacement, thus reducing maintenance costs.

Types of Hoses Made with Vistalon EPDM:

1. Automotive Hoses

• Coolant Hoses: Vistalon EPDM is commonly used in radiator and heater hoses, as well as coolant system hoses. These hoses need to resist high temperatures and contact with coolants and other engine fluids.
• Air Intake Hoses: EPDM hoses are used for air intake systems due to their flexibility, temperature tolerance, and resistance to ozone and UV exposure.
• Brake System Hoses: EPDM hoses are used for glycol-based brake fluids because of their chemical resistance and ability to withstand the mechanical pressure and heat from braking systems.

2. Industrial and Construction Hoses

• Steam and Water Hoses: Vistalon EPDM is ideal for steam and water hoses used in industrial settings, thanks to its resistance to water, steam, and heat. These hoses are commonly used in high-temperature washdown applications and steam transfer lines.
• Chemical Transfer Hoses: EPDM’s resistance to acids, alkalis, and polar solvents makes it suitable for industrial hoses that transfer chemicals.
• Agricultural and Garden Hoses: EPDM is used in garden and irrigation hoses because of its weather resistance, UV stability, and durability.

3. HVAC Hoses

• EPDM is widely used in HVAC systems for flexible ducting and hoses that handle airflow, hot water, and steam, thanks to its heat and chemical resistance.

Benefits of Vistalon EPDM for Hose Manufacturing:

1. Processing Versatility:
   • Vistalon EPDM can be extruded, molded, or calendared into various hose configurations. It’s also easy to co-extrude with other materials, such as thermoplastic elastomers (TPE), to create hoses with multiple layers for added strength and performance.
2. Enhanced Reinforcement:
   • Hoses made from EPDM can be reinforced with fibers or fabrics to improve burst pressure resistance, making them suitable for high-pressure systems, such as hydraulic hoses or fuel line hoses.
3. Blending Capabilities:
   • Vistalon EPDM can be blended with other rubbers and materials to create hybrid hoses with specific properties. For example, it can be combined with polypropylene to create thermoplastic elastomers (TPEs) that offer enhanced processing characteristics and improved flexibility.

Specific Vistalon Grades for Hose Applications:

1. Vistalon 3666:
   • This grade is used in automotive hoses, particularly for coolant and air intake hoses, because of its high ethylene content, which provides excellent mechanical properties and thermal resistance.
2. Vistalon 2504:
   • A versatile grade used for various industrial and automotive hoses due to its flexibility, durability, and resistance to weathering, ozone, and chemicals. It is particularly suitable for automotive coolant hoses and industrial steam hoses.
3. Vistalon 722:
   • This EPDM grade is often used for water and steam hoses in industrial settings because of its excellent resistance to water, steam, and heat.
4. Vistalon 8800:
   • A low-viscosity EPDM with enhanced processability, making it ideal for extrusion applications like automotive hoses that require complex shapes and flexible performance.

Example: Automotive Radiator Hose Application

• Material: Vistalon 3666 EPDM
• Performance Requirements:
  • High-temperature resistance (up to 150°C) for handling engine coolant.
  • Resistance to glycol-based coolants.
  • Durability under continuous vibration and mechanical stress from engine movement.
  • Flexibility to allow for installation in tight engine compartments without kinking.
  • Resistance to aging and oxidation to extend the hose’s service life.
• Solution: Vistalon EPDM provides all these properties, ensuring the hose remains functional for long periods in demanding engine conditions.

Conclusion:

Vistalon EPDM is a top choice for hose applications in automotive, industrial, and construction sectors due to its outstanding performance in extreme environments. Its resistance to heat, weathering, ozone, and chemicals, combined with its flexibility and durability, ensures hoses made with Vistalon EPDM last longer and perform reliably.

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Key Automotive Applications of Vistalon EPDM:

1. Weatherstripping and Seals

• Application: EPDM is commonly used for weatherstripping around car doors, windows, sunroofs, trunks, and windshields. These seals help prevent water, air, and dust from entering the vehicle cabin, while also providing noise reduction and insulation.
• Why Vistalon?: Vistalon EPDM provides excellent resistance to ozone, UV rays, and extreme weather conditions, ensuring the seals remain flexible and functional for the life of the vehicle. Its low-temperature flexibility and ability to maintain elasticity in cold and hot climates make it ideal for this use.

2. Automotive Hoses

• Application: EPDM is used in coolant hoses, heater hoses, and air intake hoses, where temperature and pressure fluctuations are common.
• Why Vistalon?: Vistalon’s ability to withstand high temperatures (up to 150°C) and resistance to coolant fluids, water, and steam makes it suitable for long-term use in engine compartment hoses. Its flexibility helps in the easy assembly and installation of hoses, and it resists cracking, swelling, and degradation from contact with fluids.

3. Belts and Gaskets

• Application: Vistalon EPDM is used in manufacturing various gaskets and O-rings for under-the-hood applications, such as valve cover gaskets, oil pan gaskets, and engine seals.
• Why Vistalon?: Vistalon offers excellent sealing properties and is resistant to oil, steam, and other chemicals encountered in automotive environments. It also retains elasticity and sealing capabilities over time, even when exposed to high temperatures and chemicals under the hood.

4. Vibration Dampeners and Engine Mounts

• Application: EPDM is used in automotive vibration dampening components, such as engine mounts, suspension bushings, and exhaust system hangers, which reduce vibrations and noise.
• Why Vistalon?: Vistalon EPDM’s elasticity and damping properties help absorb and reduce vibrations, making it ideal for components that need to mitigate noise, harshness, and vibrations (NVH). Its durability also ensures that the parts can withstand continuous mechanical stress and exposure to engine fluids without breaking down.

5. Brake and Fuel Systems

• Application: In certain applications, EPDM is used in components like brake seals, gaskets, and fuel system O-rings.
• Why Vistalon?: Vistalon EPDM is compatible with brake fluids (glycol-based) and resists swelling, cracking, and chemical degradation. It is often selected for brake systems due to its chemical resistance, flexibility, and thermal stability.

6. Window and Door Seals

• Application: EPDM seals and gaskets are used around car windows and doors to prevent moisture and noise from entering the vehicle interior.
• Why Vistalon?: Vistalon EPDM provides superior resistance to outdoor elements, ensuring that seals around windows and doors do not degrade from sun exposure, cold weather, or mechanical movement. Its low compression set ensures long-lasting sealing performance.

7. Radiator Seals and Cooling System Components

• Application: Radiator hoses and other components in a vehicle’s cooling system require materials that can handle temperature extremes and contact with antifreeze and other fluids.
• Why Vistalon?: Vistalon EPDM’s excellent resistance to glycol-based coolants and water, along with its heat resistance, make it an ideal choice for cooling system seals and hoses.

8. Wiper Blades

• Application: EPDM is used in wiper blades due to its weather resistance and flexibility, ensuring long-lasting performance even after prolonged exposure to UV rays and rain.
• Why Vistalon?: Vistalon EPDM’s superior UV and ozone resistance prevents the rubber from cracking or hardening over time, ensuring the wiper blades maintain their effectiveness in harsh weather conditions.

Why Vistalon EPDM is Ideal for Automotive Applications:

1. Heat Resistance: Vistalon EPDM can withstand high temperatures, making it suitable for under-the-hood applications and parts exposed to engine heat.
2. Ozone and UV Resistance: Its ability to resist degradation from sunlight, ozone, and outdoor weather conditions ensures that automotive seals, hoses, and other parts last longer without cracking or becoming brittle.
3. Chemical Resistance: Vistalon is resistant to chemicals commonly found in automotive environments, such as oils, coolants, and brake fluids, ensuring parts remain functional even after exposure to harsh chemicals.
4. Low-Temperature Flexibility: Vistalon remains flexible and retains its properties at low temperatures, making it suitable for automotive parts that need to perform in cold weather.
5. Long-Term Durability: EPDM’s ability to maintain its physical properties over extended periods means that automotive parts made with Vistalon EPDM require less frequent replacement, reducing maintenance costs and improving vehicle reliability.

Customization and Processing:

Vistalon EPDM grades are customizable for specific automotive applications, depending on the required properties such as hardness, elasticity, and processing characteristics. It can be:

• Extruded into profiles for weatherstripping and seals.
• Molded into complex shapes for gaskets and dampeners.
• Blended with other materials for enhanced properties like improved strength or better flexibility.

Vistalon also allows for easy coloring, which is important in aesthetic automotive applications like seals that must match the car’s interior or exterior color schemes.

Specific Vistalon Grades for Automotive Applications:

• Vistalon 3666: A high ethylene-content EPDM designed for automotive weatherstripping applications, offering excellent mechanical properties and durability.
• Vistalon 8800: A low-viscosity EPDM with enhanced processing characteristics for use in extrusion applications such as hoses and seals.
• Vistalon 2504: A versatile grade used in automotive seals, hoses, and vibration dampeners due to its excellent resistance to aging, weathering, and chemicals.

Conclusion:

Vistalon EPDM is a highly versatile and durable material that is well-suited for a wide range of automotive applications. Its resistance to heat, ozone, chemicals, and weathering, combined with its flexibility and mechanical strength, make it a preferred choice for seals, hoses, gaskets, and vibration-damping components. Vistalon’s ability to maintain performance over long periods also ensures that automotive parts remain functional and reliable, contributing to vehicle safety and durability.

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