Il polymethacrylate (PMMA) is a plastic material formed by polymers of methyl methacrylate, ester of methacrylic acid. Chemically it is the polymer of the methyl methacrylate. In the common language the term methacrylate is usually referred to this polimer. It is also called: Acrivill, Deglas, Limacryl, Lucite, Oroglas, Perclax, Perspex, Plexiglas, Resartglass, Vitroflex, Trespex