Urupapuro rwa GPPS rwasohotse urupapuro rwa PS.Urupapuro rwa PS rushobora gukoresha Kwamamaza, gucapa, ibyapa, LGP.urupapuro rwa polystyene rwitwa urupapuro rwa PMMA cyangwa urupapuro rwikirahure.Izina ryimiti ni Polymethyl methacrylatecrylic.
Urupapuro rwa PS rufite ibintu byiza bifatika muri plastiki, igice cyingenzi ni polymethyl methacrylate, ikoreshwa cyane mu nyubako, kwamamaza no gushushanya.