By TIRE KING SERVICES, Apr 13 2017 08:36PM
The natural color of rubber is white, not black. Manufacturers of tires add carbon black to rubber to increase various qualities that prolong the life of the tire. The carbon black increases road-wear abrasions of the produced tire by as much as 100-fold. It also improves the tensile strength by as much as 1,000 percent to rubber left untreated. Carbon black helps conduct heat away from troubled spots, such as tread and belt areas. Considering heat is one of the tires biggest enemies, this is a great advantage.