Thermosets are curable moulded compounds. In contrast to thermoplastics, thermosets cannot be converted into the plastic deformable state after curing due to irreversible chemical cross-linking in the mould.
- An Isolator
- Dimensionally stable
- Thermal and chemical resistance
It makes sense to differentiate between free-flowing and non-free-flowing thermosets. These two types of material require different machine technologies. While free-flowing thermosets can be processed on a standard machine with an adapted plasticizing unit, non-free-flowing thermosets require greater adaptations to the machine technology. Of the non-free-flowing thermosets, the reinforced unsaturated moist polyesters, also known as BMC (Bulk Molding Compound), are of particular interest for injection molding.
In recent years, thermosets have become increasingly important due to their good thermal and chemical resistance and their good price-performance ratio. They often replace other materials such as metals or high-performance plastics in applications with higher requirements. A good example are applications in the automotive engine compartment such as turbocharger housings and electric motors for electric mobility.