The glass transition temperature (Tg) of atactic PMMA is 105 °C. The Tg values of commercial grades of PMMA range from 85 to 165 °C (185 to 329 °F)
All common molding processes may be used, including injection molding, compression molding, and extrusion.
The highest quality PMMA sheets are produced by cell casting, but in this case, the polymerization and molding steps occur concurrently