Graphite Mechanical Seals are the ideal seal parts with dimensional stability under wide temperature variations. They are self-lapping and flexible enough to conform to the mating face, very hard, self-lubricating and resistant to wear. They are also lubricated by almost any fluid, so the media being sealed will add additional lubrication. They are impervious and resistant to most chemicals. Usually, they are used as V-rings, O-rings or wedges.