I-fiberglass edityanisiweyo yokujikeleza yokutshiza igqunywe ngobungakanani obusekwe, iyahambelana nepolyester engaxutywanga kunye ne-vinyl ester resins. Emva koko inqunyulwe yi-chopper, ifafazwe nge-resin kwi-mold, kwaye iqengqeleke, okuyimfuneko ukucwina i-resin kwi-fibers kunye nokuphelisa ama-bubbles emoyeni. Ekugqibeleni, umxube we-glass-resin uphiliswa kwimveliso.