Tar oils are used in the production of carbon black feedstock. Rain Carbon produces specially designed, high-tech carbon black oils that are used as feedstocks that are converted by our customers into industrial carbon black for a wide variety of uses, including pigments for plastics, rubber and printer toners. The most important application of carbon black is in the tire industry, where it improves a range of performance properties including sidewall strength, rolling resistance and traction. Carbon black also increases tire life by improving wear resistance and UV protection.