This material for rubber cords is easily recognized by its black colour. The rubber cords are made in both round and square profiles with standard hardness 70 ShA. rubber 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 rubber cords are exposed to the effects of steam. The rubber cords are suitable for aliphatic hydrocarbons (e.g. propane, butane, petrol...). These rubber cords may be used for the sealing of lubricants based on mineral oil.