A thermoplastic polymer masterbatch is a concentrated mix of either performance enhancing additives or pigments that are embedded into a carrier resin, cooled and cut into pellets. The masterbatch can then be mixed in the desired ratio with the dilution resin, the polymer that makes up the bulk of the final product. Examples of pigments include inorganic pigments such as Titanium Dioxide. Additives are used to enhance various physical characteristics of the end product and are generally referred to as performance additives. These can include graphene, carbon nanotubes and metallic powders.