NBR: (-10°C to +80°C) elastic standard material for neutral media such as air, oil and water. Good resistance to mechanical loads, EPDM: (-20°C to +130°C) elastic, resistance to alkaline solutions and acids of average concentration, water, hot water and steam. Not resistance to oils and greases, FKM: (-20°C to +180°C) elastic, elastomer with high temperature and weather resistance. Suitable for many acids, bases, fuels and oils (also synthetic). Not resistant to hot water and steam, CSM (Hypalon): (-40°C to +140°C) elastic and with good chemical resistance,
PTFE*: (-180°C to +200°C) very stiff and very good chemical resistance (install carefully). Resistant against almost all chemicals, even at high temperatures, NBR / PTFE: (-10°C to +80°C) elastic and with very good chemical resistance, FKM / PTFE: (-20°C to +180°C) elastic and with very good chemical resistance,
*Not recommended as very stiff, small nominal widths are difficult to assemble!