... propylene rubber has a temperature range of-50°C to +120°/150°C (-60°F to +250°/300°F), depending on the curing ... acceptance in the sealing world because of its excellent resistance to heat, water and steam, alkali, mild acidic and oxygenated ... grease, and hydrocarbon environments.Special EPDM compounds have good resistance to steam.EPDM Sulphur cured: inexpensive material for normal use, maximum ...