What is the life expectancy of rubber products

       What can be done about ozone on rubber? Common effects include cracking along the exposed, stretched, or stressed face - this is sometimes referred to as dry rot.
       Ozone can be found everywhere. Even "normal" air can have up to 0.01 ppm of ozone. In addition to the electrical equipment or lighting can increase the ppm level more.
       Different rubber polymers have greater or less ozone resistance - undersaturated rubber polymers, for example, will experience greater ozone effects. Unsaturation is the polymer structure of double and triple chemical bonds, which becomes the amount of free radicals easily produced by ozone and breaks the bonds.
       The resistance of the material will determine which applications should be used, such as door seals and weatherstripping. These are usually made of EPDM, which is very stable in ozone and will last for a long time.