Sab saum toj zoo kua unsaturated polyester retin rau fiberglass
"Polyester" yog chav kawm ntawm cov kab ke polymer uas muaj cov ntawv cog lus ester uas tau txawv los ntawm cov txiaj ntsig xws li Phenolic thiab Epoxy Resins. Cov tshuaj tiv thaiv polymer no yog tsim tawm los ntawm kev siv roj polyasic acid thiab diamond compound, thiab thaum no lub polizerurated obleem uas muaj peev xwm ua kom muaj polymerised (feem ntau styrenee).
Qhov tsis tau lav Polyester yog yaj nyob rau hauv ib tug monomer (feem ntau styrene) uas muaj lub peev xwm ua kua, nws yog hu ua ib qho kua khib nyiab, nws yog hu ua ib qho kua khib nyiab, nws yog hu ua ib qho kua khib nyiab, nws yog hu ua ib qho kua khib nyiab, nws yog hu ua ib tug kua khib nyiab, nws yog hu ua ib tug kua khib nyiab, nws yog hu ua ib tug tsis muaj kua roj av (unsaturated polyester resin lossis UPR rau luv).
Kev haus dej cawv uas tsis tau yog li cov cawv acid uas tsis muaj kuab lom Unsaturated polyester resins, uas ua rau 75 feem pua ntawm cov resins peb siv txhua txhua hnub.