sɪnθˈɛɾɪk kˈæstɪŋ "ɹˈɛzɪn" fɔːɹ ɛmbˈɛdɪŋ dɪsplˈeɪ ˈɑːbdʒɛkts ɪn plˈɛksɪɡləz slˈæʃ lˈuːsaɪt pˌiːˌɛmˌɛmˈeɪ ɪz sˈɪmpli mˈɛθəl mˈɛθɐkɹˌɪleɪt lˈɪkwɪd, ˌɪntʊ wˌɪtʃ ɐ pˌɑːlɪmɚɹaɪzˈeɪʃən kˈæɾɐlˌɪst ɪz ˈædᵻd ænd mˈɪkst, kˈɔːzɪŋ ɪt tuː "sˈɛt" pˌɑːlˈɪmɚɹˌaɪz.
Synthetic casting "resin" for embedding display objects in Plexiglas/Lucite (PMMA) is simply methyl methacrylate liquid, into which a polymerization catalyst is added and mixed, causing it to "set" (polymerize).