Controzon waxes form a flexible film on the surface of vulcanizates to protect them from crack formation due to ozone attack under static conditions. Additionally, controzon waxes act as carriers for chemical ozone protecting agents and antioxidants, and improve their effectiveness. The addition of about 2 phr prevents the ozone attack known as the “frosting effect.” Supplied as pellets, Controzon waxes are easy to handle and to weigh.
Universal antiozonant wax for rubber articles based on NR, IR, SBR, and CR, and that are used at a medium temperature, e.g. moulded articles, extruded sections, microcellular rubber, and conveyor belts. Also for articles that are in contact with foodstuffs.
For rubber articles based on all common elastomers that are exposed to higher temperature, e.g. moulded articles, extruded sections, microcellular rubber (dosage up to 12 phr), and conveyor belts, as well as for articles in contact with food.