PC lo ntsiab muag, cov lo ntsiab muag dav dav yog cov khoom siv thermosetting, uas yog, cov khoom siv raw yog kua, rhuab los ua cov khoom lo ntsiab muag. PC daim tseem hu ua "qhov chaw", "qhov chaw", lub npe tshuaj yog polycarbonate rog, yog cov khoom siv thermoplastic. Ntawd yog, cov khoom siv raw yog cov khoom, rhuab tom qab shaping rau hauv lo ntsiab muag, yog li no lo ntsiab muag yuav overheated tom qab cov khoom tiav lawm yuav deformed, tsis haum rau high humidity thiab tshav kub zaus.
PC lo ntsiab muag muaj ib tug muaj zog toughness, tsis tawg (2cm yuav siv tau rau mos mos iav), yog li nws tseem hu ua kev ruaj ntseg lens. Qhov tshwj xeeb lub ntiajteb txawj nqus tsuas yog 2 grams ib cubic centimeter, ua rau nws cov khoom siv lightest tam sim no siv rau lo ntsiab muag.