LA43Mndi aloyi ya magnesium-lithium (Mg-Li) yopepuka kwambiri yomwe imapangidwa yokha ndi opanga m'nyumba, kuphatikiza ubwino wa kulemera kopepuka kwambiri, mphamvu yayikulu, kukana dzimbiri, komanso kusinthasintha kwabwino kwambiri. Monga chinthu chopepuka chosinthika, chimadutsa m'mipata yogwirira ntchito ya aloyi achikhalidwe a magnesium ndi aluminiyamu, ndipo chimadziwika kwambiri m'magawo apamwamba monga ndege, zamagetsi a 3C, ndi zida zamankhwala.​
Ndi kuchuluka kwake kochepera 1.64g/cm³ (30% yopepuka kuposa aluminiyamu ndi 50% yopepuka kuposa chitsulo), LA43M imakwaniritsa bwino pakati pa "zopepuka" ndi "kapangidwe ka makina", kupereka yankho labwino kwambiri lazinthu zamafakitale zomwe zikufuna kusunga mphamvu, kukonza magwiridwe antchito, komanso kuchepetsa mphamvu.