Processing, thermoplastics pressure profile

Thermoforming. The thermoforming process is applicable only to thermoplastic materials. In this process, a sheet of solid thermoplastic material, such as Plexiglas (polymethylmethacrylate) or polystyrene, is placed in a mold or form and heated to a temperature at which the material becomes highly pliable but does not melt. This allows the sheet to deform and adopt the shape of the mold, assisted by changing the pressure on one side of the sheet of material. The method is most suitable for designs that are relatively flat or low profile. 

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