UPVC yog ib qho amorphous thermoplastic resin ua los ntawm cov polymerization ntawm vinyl chloride monomer ntxiv rau qee yam additives (xws li stabilizers, lubricants, fillers, thiab lwm yam). Ntxiv nrog rau kev siv cov tshuaj ntxiv, txoj kev sib xyaw nrog lwm cov resins kuj tau txais los ua kom nws muaj txiaj ntsig zoo. Cov resins muaj xws li CPVC, PE, ABS, EVA, MBS, thiab lwm yam.

UPVC muaj cov viscosity siab thiab cov dej tsis zoo. Txawm hais tias qhov kev txhaj tshuaj siab thiab yaj kub yog nce, qhov fluidity hloov me ntsis; Nyob rau hauv tas li ntawd, lub resin molding kub yog heev ze rau lub thermal decomposition kub, thiab qhov kub thiab txias rau molding yog nqaim heev. Ib yam khoom uas nyuaj rau kev tsim. UPVC yuav tsum tau hloov kho thiab granulated ua ntej nws yuav siv tau.