Iron rust layers. which are greasy. clean mechanically with petrol or white spirit. Cover the surface with a rust converter. the effect of which is proven by the development of a grayish brown shade. To increase the effect, the surface must be moistened with water after 2-3 hours. If the temperature..

Iron rust layers. which are greasy. clean mechanically with petrol or white spirit. Cover the surface with a rust converter. the effect of which is proven by the development of a grayish brown shade. To increase the effect, the surface must be moistened with water after 2-3 hours. If the temperature..