thermoset
Speech parts
1. thermoset - Noun
2. thermoset - Adjective
Meaning
having the property of becoming permanently hard and rigid when heated or cured
Source: WordNetSynonyms
Examples
the phenol resins and plastics were the original synthetic thermosetting materials
A key step in the development of synthetic plastics was the introduction of a thermoset plastic known as Bakelite phenolic in 1910.sfn Within two years, phenolic resin was applied to plywood as a coating varnish.
However, the vast majority of DIPs are manufactured via a thermoset molding process in which an epoxy mold compound is heated and transferred under pressure to encapsulate the device.
Original M16 stocks were made from fiberglass-impregnated resin; the newer stocks were engineered from DuPont Zytel glass-filled thermoset polymers.
Thermosets cannot be melted, therefore, once a thermoset has set it is impossible to weld it.