An epoxy based material that, once formed, cannot be re-shaped or re-formed.

A material that once heated and cured cannot be re-shaped or re-formed.

A type of plastics that must be cured, forming network like structures that do not soften at high temperature.

A thermoset is a polymer that irreversibly becomes rigid or cures when heated.Also Known As: thermosetting polymer, thermosetting plasticExamples: Vulcanized rubber and fiberglass are thermosets.

A material which hardens or sets when heat is applied and which, once set cannot be resoftened by heating. The application of heat is called “curing.”

A classification of material which cures (crosslinks) by chemical reaction and then is resistant to the heat related softening effect exhibited by thermoplastic materials.

A polymer which irreversibly sets upon exposure to heat.

(adj) having the property of becoming permanently hard and rigid when heated or cured

 - A plastic compound that will not remelt. Thermoset insulation compounds are used to manufacture certain types of cables.

pertaining to the state of a resin in which it is relatively infusible.

a material that will undergo or has undergone a chemical reaction by the action of heat, catalyst, ultraviolet light, etc., leading to a relatively infusible state.

A polymer, such as polyolefin, which hardens or “sets” when heat is applied and which, once “set,” cannot be re-softened through heating.

A material which permanently hardens or sets when heated or cured.  Once hardened, thermoset materials cannot be re-softened by heating.

A polymer that, when heated ('thermo') does not become soft and deformable. This is usually because it is crosslinked, and the molecules compriising it cannot move past one another unless chemical bonds are actually broken - which leads to the decomposition of the polymer. Phenol-formaldehyde resin is an example.

Plastic that is heat set.

Thermosets are a type of plastic that is the reaction product of two or more chemical compounds. While reacting and while still in a liquid shape thermoset plastics are moulded to form a wide variety of parts. Once the reaction is complete, thermoset plastics form durable solid articles (they "set"). Unsaturated polyester resins that are [..]