Early mixing methods were very simple compared to today's modern techniques. One of the first successful formulas was to heat a mixture of 25 parts of rubber, 5 parts of sulfur and 7 parts of lead oxide. The next processes determined the amount of 5 to 8 parts of sulfur for 100 parts of rubber and determined the cooking time equal to 3 to 4 hours at a temperature of 140 degrees Celsius.

Discovery of the activation effect of substances such as zinc oxide and fatty acids allowed It allowed a slight reduction in the cooking or vulcanizing time. In 1906, "Oenslager" discovered that the increase of "aniline" or its derivatives significantly accelerates the reaction between rubber and sulfur so that a shorter curing time or a lower temperature can be used. . It was in 1914 that the first patent related to accelerators was published in West Germany, and since then, hundreds of accelerators have been manufactured and supplied, most of which have been replaced by more advanced products. With the help of these materials, cooking times of a few minutes or seconds at normal cooking temperatures are possible instead of cooking times of several hours at normal room temperatures. The manufacture and supply of carbon black as a strengthening agent was implemented in 1920, followed by the introduction of antioxidants. "Isoprene", the basic chemical unit of natural rubber, was discovered in 1835, and in 1879, its polymerization into an elastic material was noticed. Especially in the two world wars, continuous efforts have been made to invent processes for the synthesis of rubber. The first synthetic rubber "Styrene Butadiene Rubber" (SBR) was produced in early 1912 and in 1913 "Neoprene" was released by DuPont, "Nitrile" rubber was first released in 1937. The year in which "Biotil" rubber was also discovered. Today, the number and types of synthetic rubbers reach 500.

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