Exposure to ultra violet radiation often results in the loss of mechanical attributes such as stress. UV radiation just accounts for a small part of sunlight but leads to the degradation of both natural and artificially created polymers. True, exposure to UV rays causes many products made from materials like polymers to crack or simply stop working. However, adding UV light stabilizers at the manufacturing stage can save them from degrading. Light stabilizers help your car tire stay black. Furthermore, polymer additives prevent the road cones from shattering due to heat.