I-purlin yensimbi enamandla enziwe ngama-purlins (insimbi ye-C-section, insimbi ye-Z-section) njengento eyisisekelo.Ngemuva kokucindezela, ukwakhiwa kwemigodi, ukusika nokwenza, i-epoxy resin powder ishisa ngaphambili ekushiseni okuphezulu ukuze ifakwe futhi iguqulwe, bese icutshungulwa ngokuphulukisa nezinye izinqubo.
I-epoxy resin inokumelana nesimo sezulu esihle kakhulu.Isendlalelo se-epoxy resin sihlukanisa ngokuphelele ukuxhumana phakathi kwensimbi nomoya, sigwema i-oxidation nokugqwala kwensimbi, senza ama-purlins abe nokuqina okukhulu futhi agweme ukugcinwa kwangemuva.
Ubuchwepheshe obuthuthukisiwe kanye nefomula yesayensi yenza i-purlin ibe nzima futhi ingagugi, ibe nokunamathela okuqinile futhi ingalokothi i-delamination.I-anti-corrosion layer ngeke iqhekeke noma ixebuke ngemva kokugoba.