Slade manufactures all of its own patented graphite yarns. The advantage is that each individual strand has it's own unique core made of high tensile carbon fiber. The yarns are protected by US & EU patents. They were developed to conduct heat like steel alloys, to transfer the heat away from the shaft.
When Slade Foil is compressed by 25% (the denser the better), die-formed density is achieved in the stuffing box. This forms a "heat sink" in the stuffing box, eliminating the need for flush-water to cool the shaft sleeve, in most applications. In addition, SLADE reduces the number of oxidation sites in the packing yarns so that 3300G can be used in more severe temperature and chemical applications than competitor’s packings.