ʻO Polymethyl Methacrylate (PMMA), i ʻike ʻia hoʻi he acrylic resin, he mea ʻenekinia thermoplastic transparency kiʻekiʻe i hāʻawi ʻia i ke ʻano pellet like. Ma ke ʻano he koho premium i ke aniani inorganic, hoʻohui ia i ka hana optical kupaianaha, ka hiki ke kū i ka wā a me ka hiki ke hana pono no nā noi ʻoihana ākea.