Elastic compounds

Group R Compounds

CIIR: chlorobutyl

Commercial name: Esso Butyl (Esso).
Chlorobutyl rubber is obtained by the addition of chlorine to the compound for butyl rubber (IIR). The result obtained is a rubber that presents the characteristics of butyl rubbers, but with a better elastic behaviour: there is an increase in the Compression Set value especially at low temperatures.

Temperature table

Maximum temperature

Minimum temperature

130°C

-40°C

Fluid compatibility table

Compatible

No compatible

Mineral oils
Silicone oils and greases
Fluids for refrigeration
Aliphatic hydrocarbons
Oxygen, Ozone, Nitrogen

Aromatic and chlorinated hydrocarbons
Glycol based fluids
Polar solvents

The Elastotech code for this compound is: ME15XX/YY.

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Introduction
List of names
Principal compounds
Operating conditions and contact fluids
Rainbow C recognition system
Detailed panorama on some compounds of O-rings
Principal table of the compounds