Perspex is a brand name for a type of acrylic sheet, which is a transparent thermoplastic material). The material used to make Perspex is called polymethyl methacrylate (PMMA), which is also known as acrylic glass, plexiglass, and various other trade names). PMMA is a synthetic polymer derived from methyl methacrylate and is used as an engineering plastic). Perspex is often used in sheet form as a lightweight or shatter-resistant alternative to glass). It can also be used as a casting resin, in inks and coatings, and for many other purposes). Perspex is manufactured to the highest industry standards possible and has an enviable reputation as the very best acrylic available. The characteristics of Perspex are very similar to other brands of acrylic sheet, and they can be processed in the same ways.