Thermoforming relies on carefully selected materials to shape various products. This article explores the significance of material selection in plastic thermoforming, emphasizing key properties such as heat resistance, formability, and impact strength. Common thermoforming materials like polystyrene, polyethylene terephthalate, and polypropylene are discussed, along with advances in sustainable options. Gain insights into optimizing the thermoforming process for superior results and sustainability.