EPDM Natural rubber blend

A mixture of ethylene propylene diene monomer rubber (EPDM) and natural rubber (NR) combines the beneficial properties of both materials, resulting in a compound with enhanced characteristics. Here are the key benefits of this mixture:

1. Improved weather resistance: EPDM is excellently resistant to ozone, UV radiation, and general weathering, while NR adds durability.
2. Enhanced temperature range: The mixture can perform well in a wider temperature range, combining EPDM’s low-temperature flexibility with NR’s heat resistance.
3. Better mechanical properties: NR provides high tensile strength and tear resistance, while EPDM contributes to overall durability.
4. Increased elasticity: NR’s high elasticity complements EPDM’s flexibility, resulting in a material with good stretch and recovery properties.
5. Balanced chemical resistance: EPDM’s resistance to polar solvents and NR’s resistance to non-polar solvents create a more versatile chemical resistance profile.
6. Cost-effectiveness: Blending EPDM with NR can potentially reduce costs compared to using EPDM alone, as NR is often less expensive.
7. Improved processing: NR can enhance the processability of EPDM, making the mixture easier to mould and shape during manufacturing.
8. Better ageing characteristics: The combination can result in improved resistance to ageing and degradation over time.
9. Vibration dampening: Both materials have good vibration absorption properties, which are retained or enhanced in the mixture.
10. Customizable properties: By adjusting the ratio of EPDM to NR, manufacturers can fine-tune the properties of the final product to suit specific applications.

The blend of EPDM (Ethylene Propylene Diene Monomer) and NR (Natural Rubber) is used in various products that require a balance of weather resistance, durability, and elasticity. Here are some common applications:

1. Automotive components:
   • Weather stripping for doors and windows
   • Hoses (radiator, heater, and coolant)
   • Vibration dampers
   • Engine mounts
   • Belt drives
2. Roofing materials:
   • Roofing membranes
   • Sealants for roof edges and joints
3. Electrical insulation:
   • Cable jackets
   • Wire insulation for outdoor use
4. Marine applications:
   • Dock bumpers
   • Boat fenders
5. Outdoor equipment:
   • Seals for outdoor electrical enclosures
   • Grommets and bushings for outdoor machinery