Thermoset

Thermosets are a type of plastic that is the reaction product of two or more chemical compounds. While reacting and while still in a liquid shape thermoset plastics are moulded to form a wide variety of parts. Once the reaction is complete, thermoset plastics form durable solid articles (they "set"). Unsaturated polyester resins that are used to make glass reinforced plastics are an example of a thermoset plastic.