How do you select a suitable rubber compound?

The selection of rubber compounds for rubber expansion joints is critical to ensure durability, flexibility, and compatibility with the specific operating conditions. Here are key considerations for selecting rubber compounds:

1. Temperature Resistance: The rubber compound must withstand the temperature range of the application, whether it involves high heat, cryogenic conditions, or standard temperatures.
2. Chemical Compatibility: Different rubber compounds have varying resistance to chemicals, oils, and fluids. It’s essential to select a compound that is compatible with the media it will encounter.
3. Mechanical Properties: Considerations like tensile strength, elongation, and hardness are crucial for the joint’s performance under stress and movement.
4. Environmental Resistance: Factors such as ozone, UV light, and weathering can degrade certain rubber compounds. Selecting a compound with adequate resistance to these environmental factors is important for longevity.
5. Regulatory Compliance: Depending on the application, certain compounds may need to meet specific industry standards or regulations.