REZINA (az lotini zift) vulkanizat, mahsuloti elastikiest, ki dar natichjai vulkanizatsiyai kauchuk hosil meshavad. (nigared, Kauchuk). Dar sanoat Rezinaro az omekhtai rezinie hosil mekunand, ki ba gayr az kauchuk va moddahoi vulkanizatsiyakunanda boz plastifikator, stabilizator, purkunanda va digar moddahoi zaruri dorad.
Vobasta ba sharoiti istifoda Rezina yakchand khel meshavad: Rezinahoi tainoti umumi, garmibardor, khunukitobovar, ba tasiri ravgan, benzin, kislotayu ishqorqo va radiatsiya ustuvor. Rezinahoi noqili elektri va dielektri niz mavjudand.
Sanoati istehsoli Rezina baroi bisyor sohahoi khojagii khalq detalu jihozhoi gunogun mesozad. Rezina yagona materialest, ki baroi sokhtani rezinai charkhi (shinai) moshinu traktor istifoda meshavad. Az Rezina lentazoi konveyeri, tasmaqoi tekhniki, dastpushak, poyafzol va digar ashyoho tayyor mekunand. Inchunin az Rezina izo-lyatsiyai simhoi elektr, ruypushhoi elastikii elektrguzaron, klapanhoi dil, naychaqoi khunguzaroni, detalhoi apparathoi narkozdihi va gayra mesozand. Dar jahon sole ziyoda az 20 million tonna Rezina istehsol meshavad; 50%-i on baroi istehsoli rezinacharkhi avtomobil va 22%-ash baroi tayyor kardani masnuoti tekhnikii rezini sarf megardad.