A polymer with strong intermolecular bonding that becomes rigid by chemical reaction and that is not remeltable. Thermoset polymers are usually insoluble in most solvents. Examples of thermoset polymers are epoxies, silicones, and phenolics along with some polyesters and polyurethanes. (en)
Plastic met sterke intermoleculaire binding, dat onbuigzaam wordt door chemische reacties en niet meer kan worden gesmolten. (nl)
Plástico con una sólida unión intermolecular que se hace rígida por reacción química y que no puede volver a fundirse. (es)