Iron oxide ke e 'ngoe ea li-pigment tsa anti-corrosion tse tenyetsehang ka ho fetesisa. Li-pigment tsa rona tsa tšepe ea tšepe, tse hlahisitsoeng ke oxide ea tšepe e bonaletsang le ultramarine putsoa, ke lihlahisoa tse peli tsa oxide ea tšepe tse bitsoang Noelson Chemicals tse etselitsoeng bareki.