Rubber sealing cords made of EPDM have a dark colour and have a round profile. The hardness of these sealing cords is 70 ShA. Sealing cords made of EPDM can withstand temperatures within the range of -40 to +140 °C. If exposed to steam a temperature of 130 °C should not be exceeded. The material of which these sealing cords are made is resistant to inorganic as well as organic solvents. These sealing cords are also resistant to oxidizing media such as alkali agents and ketones.