How Do You Mold a Shoe Sole? How are shoe soles molded?
In 1844, Charles Goodyear invented heating rubber mixed with sulfur to create shoe rubber, called vulcanization. This is still how shoe brands make rubber shoe bottoms today. The recipes and processes are all about the same for brands. Natural rubber processing focuses on the mold release for polyurethane integral skin molding for shoe soles. Soles … Read more