Topanol CA antioxidant is a high molecular weight hindered phenolic antioxidant. It is used primarily in polymer systems that are sensitive to thermal and oxidative degradation because of free radical and peroxide formation.

Topanol CA will provide excellent protection against degradation at high processing temperatures and will extend the service life of polymers that are used at elevated temperatures. The original grade of Topanol CA was developed some 40 years ago and has gained an excellent reputation in the polymer industry.

An improved grade Topanol CA-SF has also been developed which is approximately 10% more active than the original grade and has improved handling and storage benefits.