Group O Compounds

ECO: epichlorohydrin copolymers
Commercial names: Herchlor (Hercules Inc.), Hydrin (B. F. Goodrich Co.).
The epichlorohydrin copolymer lends itself to use in applications where thermal and mechanical stresses do not reach great intensity, but where direct contact with air cannot be excluded. In fact, this rubber presents good resistance to ageing if the operating temperature is maintained below 140°C. At higher temperatures the superficial deterioration and the worsening of the Compression Set make its use inadvisable.

Temperature table
Maximum temperature
Minimum temperature
Fluid compatibility table
No compatible
  • Mineral oils
  • Silicone oils and greases
  • Aliphatic hydrocarbons
  • Oxygen, Ozone, Nitrogen
  • Aromatic and chlorinated hydrocarbons
  • Glycol based fluids
  • Polar solvents
The Elastotech code for this compound is: ME12XX/YY.
Elastic compound for O-rings