Zopangira za mankhwalawa ndi silika gel osakaniza, omwe ndi otetezeka kugwiritsa ntchito, opanda fungo lamphamvu, kusinthasintha kwamphamvu, kukoka mobwerezabwereza ndi kupunduka.Izi zimatha kuletsa zolemba kuti zisagwe ndipo zimakhala ndi mwayi woteteza kutentha.Zosavuta kuyeretsa ndikupachika mukatha kugwiritsa ntchito.