Carbon fiber packing impregnated in graphite is diagonally braided from pure carbon fibres, with a special graphite impregnation and a silicone-free lubricant. It lacks the usual stiffness of pure carbon packings, it has superb thermal conductivity and a very low coefficient of friction. Contrary to many packings made from synthetic fibres, it does not shrink, even if subjected to high temperature: no shrinkage at temperatures of up to 300°C thanks to its outstanding dimensional stability. Because of the excellent chemical and mechanical properties of carbon, this packing is resistant against most aggressive and abrasive media.