Impregnated Carbon has the advantage of excellent corrosion resistance, self-lubricity, high coefficient of heat conductivity. It is ideal to choose it as the frictional mating rings. They can also be made into the seal faces, bearings and so on.
Metal Impregnated Carbon has more inherent strength and can be used for working at high temperature up to 350 deg.C. It also has the advantage of excellent corrosion resistance, self-lubricity, high coefficient of heat conductivity.