Engineering material
Thermosetting polymer
Also known as thermoset, thermosetting resin
A polymer that cures by irreversible cross-linking into an insoluble solid — epoxy, unsaturated polyester, vinyl ester, phenolic, polyimide and bismaleimide resins. It cannot be re-melted once cured.
Classification
- material family
- POLYMER
- form
- BULK
How this record is known
- 1
- Settled consensus
- Cited as the accepted position of the discipline.
1 of 1 claims on this page cite at least one registered source. Counts describe how each statement is known, not how likely it is to be true.
What Lithoen records
Each claim states how it is known and cites its evidence.
EstablishedCures by irreversible cross-linking into an insoluble solid; cannot be re-melted.
A thermosetting polymer cures, by heat or a catalyst, through irreversible cross-linking into an insoluble solid, so it cannot be re-melted and is broken down rather than recovered when stripped from fibres; the resin families used as composite matrices include polyester, vinyl ester, phenolic, epoxy, polyimide and bismaleimide.
Evidence support: Supported by the cited evidence · 2 sources, multiple sources, independence unknown
Evidence: U.S. Department of Energy 2015 · Primary authority; U.S. Department of Transportation, Federal Aviation Administration, Flight Standards Service 2023 · Primary authority
Record last updated 2026-10-30. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.