Masterbatches are colour and/or additive concentrates based on plastic resin or a similar matrix. The contents of colourants and/or additives in such concentrates are typically much higher than in the final application. Various forms of concentrates – such as pellets, liquid, paste, or powder – are available.
Masterbatches are used in all typical processes of the plastics industry, such as extrusion, injection moulding and blow moulding. Masterbatches are distributed to diverse customers, e. g. the packaging, medical devices and automotive industries.