thermosetting

Thermosetting materials are a type of plastic that, once heated and shaped during manufacturing, undergo a chemical reaction called curing, which creates a rigid, cross-linked structure. This process makes them hard, heat-resistant, and durable. Unlike thermoplastics, thermosets cannot be melted and reshaped after they set; they will char or burn if exposed to high heat. Common examples include epoxy resins, bakelite, and certain electrical insulators. They are valued for their strength, heat stability, and chemical resistance, making them ideal for products that need to withstand tough conditions.