 color variability of the product), or compounding from raw materials on site (which is prone to issues with achieving full dispersion of the colorants and additives, and prone to preparing more material than what is used for the production run).In comparison with pure pigments, masterbatches require more storage space and their lead times are longer.Another disadvantage is additional exposure of heat ("heat history") to both the carrier and the additive; this may be important e.g.