The Signature™ family of graphites and carbon materials, in powder and granular form, includes crystalline flake and vein graphite, amorphous graphite, synthetic (artificial) graphite, along with calcined petroleum cokes. These materials are sourced from selected and qualified mines and sources from around the world.

Signature graphites and carbons are chosen to perform in the most challenging and in the simplest applications. These materials offer consistency and quality at an economical price.

Signature™ Products

Characteristics	Appearance	Applications	SEM
Carbon (LOI): 80 - 99% Grain Size Distribution: Varies upon grade	Amorphous graphite is microcrystalline in structure. Normally found as massive lumps with flat fracture cleavage.  Formed by thermal metamorphism of coal seams, its carbon content is dependent on the parent material.	Lubricant Additives, Friction Materials, Pencils, Refractories, Paints, Rubber and Polymer Composites, Metal Covers, Thread Compounds, Drilling Mud Additives

Characteristics	Appearance	Applications	SEM
Carbon (LOI): 99.0% min. Grain Size Distribution: Varies upon grade	Calcined petroleum coke is formed from the by-product of crude oil distillation.  Available in wide ranges of types and morphologies to meet the application, these materials have a dark, flat sheen. They are high in carbon but have reduced lubrication, electrical and thermal conductivity properties, and are mainly used as a filler.	Friction Materials, Refractories, Packings & Seals

Characteristics	Appearance	Applications	SEM
Carbon (LOI): 80 - 99% Grain Size Distribution: Varies upon grade	Crystalline flake graphite can be recognized by its high metallic sheen, and plate like particle morphology. It is formed in metamorphic rock, in concentrations of 5 - 12% of the ore body. This is the most widely available crystalline form of natural graphite.	Friction Materials, Energy Materials, Powder Metallurgy, Electrical Components, Carbon Brushes and Parts, Insulation, Thread Compounds, Drilling Mud Additives, Packings & Seals

Characteristics	Appearance	Applications	SEM
Carbon ( LOI): 98.0 - 99.7% Grain Size Distribution: Varies upon grade	Synthetic Graphite, sometimes referred to as artificial graphite, is the by-product of graphite electrode manufacturing.  It has a dark gray to black, flat appearance.  Manufactured from calcined petroleum cokes, and graphitized at temperatures above 2700 deg Celsius, these materials offer high purity, excellent lubrication, and electrical conductivity.	Friction Materials, Energy Materials, Powder Metallurgy, Electrical Components, Carbon Brushes and Parts, Thread Compounds, Drilling Mud Additives, Rubber and Polymer Composites, Packings & Seals

Characteristics	Appearance	Applications	SEM
Carbon (LOI): 90 - 99% Grain Size Distribution: Varies upon grade	Crystalline vein graphite can be recognized by its light metallic sheen and needle-like particle morphology. It is found in fissures, fractures, or cavities transversing igneous and metamorphic rocks through pyrolysis of carbon-bearing gases.  It is the most pure and highest level of crystallinity of the natural graphites, as well as the most rare.	Energy Materials, Lubricants, Grinding Wheels, Powder Metallurgy, Electrical Components, Friction Materials, Plastics, Carbon Brushes and Parts