About O'Neil Color & Compounding

O'Neil Color & Compounding, a division of Primex Plastics, was originally founded in 1957 with operations headquartered in Garfield, New Jersey, USA. The company specializes in custom color and additive solutions for the plastics processing industry. With a strong focus on technical expertise and customer collaboration, O'Neil delivers consistent, high-quality formulations that enhance aesthetics, performance, and processability. Its portfolio includes color masterbatches, custom polymer compounds, additive concentrates, white and specialty colorants, as well as filled and reinforced compounds for applications in packaging, automotive, consumer goods, and industrial markets.