EPDM 70 Shore A (Sh) is a crucial material in various industries, particularly in China, where its applications span automotive, construction, and manufacturing sectors. This guide delves into the properties, benefits, and uses of EPDM 70 Sh, emphasizing its significance in enhancing product durability and performance.
Readers can expect to gain a comprehensive understanding of EPDM 70 Sh, including its chemical composition, physical characteristics, and processing techniques. The guide will also explore market trends and the competitive landscape in China, providing valuable insights for manufacturers and consumers alike.
Additionally, the guide will address common challenges associated with EPDM 70 Sh, offering practical solutions and best practices for effective utilization. By the end, readers will be equipped with the knowledge to make informed decisions regarding the selection and application of this versatile material.
Comprehensive Guide to EPDM 70 SH Rubber
EPDM (Ethylene Propylene Diene Monomer) rubber is a versatile synthetic rubber widely used in various industries due to its excellent resistance to heat, ozone, and weathering. Among its many grades, EPDM 70 SH is particularly notable for its hardness and durability, making it ideal for applications requiring robust performance. This guide will delve into the technical features, types, and applications of EPDM 70 SH rubber, providing insights for manufacturers and consumers alike.
Technical Features of EPDM 70 SH
EPDM 70 SH rubber is characterized by several key technical features that enhance its performance in demanding environments. Below is a comparison table highlighting these features:
| Feature | Specification |
|---|---|
| Hardness | 70 Shore A |
| Tensile Strength | ≥ 10 MPa (13.39 MPa typical) |
| Ultimate Elongation | ≥ 200% (467.39% typical) |
| Specific Gravity | 1.12 g/cm³ |
| Heat Resistance | Up to 150°C |
| Ozone Resistance | Excellent (Pass in tests) |
| Water Resistance | Volume change: -5% to +5% |
| Low-Temperature Brittleness | Non-brittle at -55°C |
These features make EPDM 70 SH suitable for a wide range of applications, from automotive seals to roofing membranes.
Types of EPDM Rubber
EPDM rubber comes in various formulations, each tailored for specific applications. Below is a comparison table of different types of EPDM rubber:
| Type | Description | Applications |
|---|---|---|
| EPDM 70 SH | Standard grade with high durability and flexibility. | Automotive seals, gaskets, roofing. |
| EPDM 60 SH | Softer grade, offering better flexibility. | Weather stripping, insulation. |
| EPDM 80 SH | Harder grade, providing enhanced wear resistance. | Industrial applications, heavy-duty seals. |
| EPDM Peroxide-Cured | Cured with peroxide for improved heat resistance. | High-temperature applications. |
| EPDM Sulfur-Cured | Cured with sulfur, offering good aging properties. | General-purpose applications. |
Each type of EPDM rubber has unique properties that cater to specific needs, ensuring optimal performance in various environments.
Applications of EPDM 70 SH
EPDM 70 SH rubber is widely used across multiple industries due to its excellent properties. Here are some common applications:
- Automotive Industry: Used for seals, gaskets, and weather stripping due to its durability and resistance to harsh conditions.
- Construction: Ideal for roofing membranes and waterproofing applications, providing long-lasting protection against the elements.
- HVAC Systems: Utilized in insulation and gaskets, ensuring energy efficiency and reliability.
- Electrical Insulation: Serves as protective covers for cables and wires, offering excellent electrical insulation properties.
- Food and Beverage: Compliant with FDA standards, making it suitable for seals and gaskets in processing equipment.
Companies like Shangrao Ruichen Sealing Co., Ltd and Fobrubber are known for manufacturing high-quality EPDM products, ensuring that they meet industry standards.
Advantages of EPDM 70 SH
The advantages of using EPDM 70 SH rubber include:
– Durability: Withstands extreme weather conditions, ensuring longevity.
– Flexibility: Maintains flexibility even at low temperatures, making it versatile for various applications.
– Chemical Resistance: Resistant to a wide range of chemicals, enhancing its usability in industrial settings.
– Cost-Effectiveness: Offers a reliable solution at a competitive price, making it a preferred choice for manufacturers.
Conclusion
EPDM 70 SH rubber is a highly versatile material that excels in various applications due to its unique properties. Its resistance to heat, ozone, and weathering makes it an ideal choice for industries ranging from automotive to construction. With numerous types available, manufacturers can select the right formulation to meet their specific needs. Companies like ShoneRubber and Chinax provide a wide range of EPDM products, ensuring quality and reliability.
FAQs
1. What is EPDM 70 SH rubber?
EPDM 70 SH rubber is a synthetic rubber known for its high durability and resistance to heat, ozone, and weathering, making it suitable for various applications.
2. What are the common applications of EPDM 70 SH?
It is commonly used in automotive seals, roofing membranes, HVAC systems, electrical insulation, and food processing equipment.
3. How does EPDM 70 SH compare to other types of EPDM?
EPDM 70 SH offers a balance of hardness and flexibility, making it ideal for general-purpose applications, while other types may be softer or harder for specific needs.
4. Where can I purchase EPDM 70 SH rubber products?
You can find EPDM 70 SH products from manufacturers like Fobrubber and Partstown.
5. Is EPDM 70 SH rubber environmentally friendly?
Yes, EPDM rubber is considered environmentally friendly due to its durability and resistance to degradation, reducing the need for frequent replacements.