Masterbatches made for general applications in plastic processing are found to be not appropriate for use in engineering polymers. There might be several reasons like non compatibility of carrier resins, degradation of carrier resin due to high temperature, degradation due to mechanical properties. We are offering pre colored compounds that are custom made for engineering polymers like whites, blacks and colors. The advanced technology of engineering polymers have reached such high that in many engineering products the metallic products are replaced with plastics.