During their usage, rubber articles are exposed to oxidation, flex, fatigue, ozone and light attack. In order to improve their durability, they have to be protected by different additives. A very effective protection is especially important when rubber goods are used in dynamic and outdoor applications. The oxidation of rubber can be considerably slowed down by the addition of antioxidants. Antioxidants are chemicals that destroy and scavenge oxy radicals before the radicals have opportunity to react with rubber chains.