Vulcanization
chemical process for converting natural rubber or related polymers into more durable materials
Vulcanization (British English: vulcanisation) is a range of processes for hardening rubbers. The term originally referred exclusively to the treatment of natural rubber with sulfur and heat, which remains the most common practice. It has also grown to include the hardening of other (synthetic) rubbers via various means. Examples include silicone rubber via room temperature vulcanising and chloroprene rubber (neoprene) using metal oxides.
Vulcanization can be defined as the curing of elastomers, with the terms 'vulcanization' and 'curing' sometimes used interchangeably in this context. It works by forming cross-links between sections of the polymer chain which results in increased rigidity and durability, as well as other changes in the mechanical and electrical properties of the material. Vulcanization, in common with the curing of other thermosetting polymers, is generally irreversible.
The word was suggested by William Brockedon (a friend of Thomas Hancock who attained the British patent for the process) based on the god Vulcan who was associated with heat and sulfur in volcanoes.
History
In ancient Mesoamerican cultures, rubber was used to make balls, sandal soles, elastic bands, and waterproof containers. It was cured using sulfur-rich plant juices, an early form of vulcanization.
The public source identifies “Vulcanization” as chemical process for converting natural rubber or related polymers into more durable materials. This brief keeps that definition visible, then builds a research path around Vulcanization, chemical and process.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Aug 26, 2026. The linked authority identifier is Q188631. The Library of Congress control number is sh85144465. 1 of 1 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Vulcanization” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.