Polymethyl Methacrylate (PMMA), wanda aka fi sani da acrylic resin, wani kayan injiniya ne mai haske da aka samar a cikin nau'in pellet iri ɗaya. A matsayin madadin gilashi mara tsari, yana haɗa aikin gani na musamman, kyakkyawan yanayin yanayi da ingantaccen sarrafawa don aikace-aikacen masana'antu.