Goodyear’s combination of curing, mixing and heating leads to the rugged shoe soles we know today. ![]() We still use the same vulcanization method to create rubber for shoe sole material. He used a process he called “vulcanization” to heat natural rubber in order to mix it with sulfur - a concoction that helped create the type of rubber used in shoe soles today. The shoe manufacturing process goes back to 1844, when Charles Goodyear made a breakthrough after years of experimentation. But how did the rubber sole of a shoe come to be so commonplace? And how do modern manufacturers mass produce the millions of rubber soles that need to be churned out each year in order to keep the world’s feet secure and comfortable? ![]() We take for granted the rubber on the bottom of our shoes - the material that grips and keeps us steady in tennis shoes, running shoes, casual shoes and even dress shoes.
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