Elastomers are rigid, usually soft, but always elastically deformable under load. After stress, elastomers return to their initial shape.
When heated, elastomers do not become plastic (and are not deformable), and will not melt. At high temperatures decomposition takes place and the material is destroyed. Elastomers are non-meltable, non- weldable, and insoluble, but they are resolvable.
The elasticity of an elastomer material is defined by the degree of cross-linking. The linking process is called vulcanization or curing. Vulcanized elastomers are also called “rubber”.
Chloroprene is the common name for the organic compound 2-chlorobuta-1,3-diene. This colorless liquid is the monomer for the production of the polymer polychloroprene, a type of synthetic rubber. Polychloroprene is better known as Neoprene, the trade name given by DuPont.