Njengoko i-rotors ye-brake yenziwe ngentsimbi, i-rust ngokwemvelo kwaye xa ibonakaliswe kwiiminerali ezifana netyuwa, ukurusa (i-oxidization) idla ngokukhawuleza.Oku kukushiya une-rotor ekhangeleka kakubi kakhulu.
Ngokwemvelo, iinkampani zaqala ukujonga iindlela zokunciphisa ukurusa kweerotor.Enye indlela yayikukuqaba iGeomet ukuthintela umhlwa.