Kugwedeza mwachindunji ndi zinthu zomwe zimagwiritsidwa ntchito popanga mafilimu a fiberglass olimbikitsidwa. IchiFiberglassAmapangidwa kuchokera ku ulusi wowoneka bwino womwe wakhala utakonzedwa kuti upereke nyonga zazikulu ndi kutukwana, ndipo nthawi zambiri amagwiritsidwa ntchito polimbikitsa mphamvu ndi kulimba kwa zinthu zapulasitiki.
Kutsika mwachindunji kumagwiritsidwa ntchito nthawi zambiri monga jakisoni monga jakisoni akuwumba, ndikuumba zinthu zosiyanasiyana monga magawo am'mimba, ndi zida zomangira. Firgeglass Rovingcan imagwiranso ntchito m'magulu, omwe amagwiritsidwa ntchito popanga zigawo zolimbitsa thupi ndi mphamvu yayikulu komanso zopepuka.