A concentration of a substance (an additive, pigment, filler, etc.) in a base polymer.
(r) a homogeneous mixture of rubber and one or more materials in known proportions for use as a raw material in the preparation of the final compounds.
A concentrated blend of pigment, additives, filler, etc. in a base polymer.
A concentrate of additive in a polymer-based carrier resin. A masterbatch is generally added to a polymer in order to introduce various additives at a known level.
any mixture of some but not all of the components of a formulation; this is done to allow hotter mixing (in which addition of curatives would precipitate some premature vulcanization in the mixer) or for some other processing convenience
A plastics compound which includes a high concentration of an additive or additives. Masterbatches are designed for use in appropriate quantities with the basic resin or mix so that the correct end concentration is achieved. For example, colour masterbatches for a variety of plastics are extensively used as they provide a clean and convenient method of obtaining accurate colour shades.
A pelletized plastic material containing highly loaded pigments which is used in a polymer system to change the final color and/or properties of a plastic part.
