This material for o-ring cords is easily recognized by its black colour. The o-ring cords are made in both round and square profiles with standard hardness 70 ShA. o-ring cords made of this material are designed to withstand temperatures from -40 to +110 °C. The temperature range increases to 130 °C on a short-term basis when these o-ring cords are exposed to the effects of steam. The o-ring cords are suitable for aliphatic hydrocarbons (e.g. propane, butane, petrol...). These o-ring cords may be used for the sealing of lubricants based on mineral oil.