Ethylene Propylene Rubber (EPDM)
| ASTM Classification | : | CA |
| Temperature Range | : | - 50°C to 120°C (VMQ) - 50°C to 150°C(PVMQ) |
EPDM is a Terpolymer of Ethylene, Propylene & Diene which can be cured using Sulphur as well as Peroxides.
EPR on the other hand is a copolymer of Ethylene & Propylene which can be only cured with the help of Peroxides.
EPDM exhibits outstanding resistance to Heat, Ozone, Weathering, Steam and Low Temperatures.
Owing to economical costs, EPDM finds large application in Automotive Products, Door & Window Glazing/Seals, Hydraulic Brake Systems, Weather Strips, Water Systems, Electrical Insulation etc.
Advantages
- Wide Temperature Resistance
- Good Resistance to Steam, Ozone & Weathering
- Good Resistance to Water, Alkalis & Sunlight
- Good Resistance to Dilute / Moderate Acids
- Good Resistance to Glycol Based Brake Fluids
- Good Resistance to Phosphate Ester Fluids
Disadvantages
- Poor resistance to Aromatic & Aliphatic Fuels
- Poor resistance to Halogenated Solvents
- Poor Resistance to LPG, Kerosene & Flame
- Poor Resistance to Hydrocarbon Fuels
- Poor Resistance to Petroleum based Products
- Poor Resistance to Mineral Oils