Vacuum forming is a type of thermoforming. With thermoforming being one of the oldest and most common methods of processing plastic materials, vacuum formed products are all around us, and play a major part in our everyday lives.
Unlike other thermoplastic forming processes, where powder or granulate are the starting point, vacuum forming uses extruded plastic sheet. This process takes a flat sheet of extruded plastic, which is heated until pliable. it is then allowed to shape by applying a vacuum & sucking the sheet into a mould.