Edexcel GCSE Design and Technology · 1DT0
Specification 4.5.1 · Paper 1
Revise: Stock Forms and TypesThermosetting polymers harden through a chemical reaction and cannot then be softened and reshaped by heating. This distinction helps explain why heated granules can become a moulded component, while liquid thermosetting resin becomes solid by curing. Not every polymer is available in every stock form.