Document 2NNKmprnNX8D8RarDrkMpwp05

.,. inhibits DUSTING Research disposes sound reasons for Red Lead's long acceptance as the "standard" metal protective paint. None is more important than Red Lead's ability to keep iron and steel in a "passive" state, in which the rusting process is held to a minimum. As you know, unpainted steel, exposed to moisture, rapidly rusts. However, the same metal, under identical exposure conditions, remains "passivated," or rustinhibited, when coated with Red Lead. Proof of this is given in the graph at the! right. It shows clearly the rustinhibitive effect of Red Lead paint on steel, as contrasted with the rapid and continuous rusting of unpainted metaL It is worth noting that, even after five years' exposure, the "passivating" power of Red Lead is still retained. Small won der, then; that maintenance men think of Red Lead first when it comes to mak ing metals last. graphic Evidence of RED LEAD'S Protective Power The non-corradiiig state, of Redheaded sled, as compared with Unprotected steel, was measured electrically. A piece of 'unpointed steel was iminersed in water. The iron, going, into solution, reacted with oxygen' in -.the water' to form rust. This unrestrained corroding state is indicated 'by a rapidly developed and maintained negative potential relative to hydrogen (see above graph). However, When steel panels painted with Red Lead were immersed urfier the same conditions, iron and lead salts forrhed directly next to the metal. This action at ancp stifled corrosion by pre venting the iron: from goidg into solution, thus keeping the steel surface passive. The result is shown in the graph .curves above, where a quickly rising positive potential remains constant through out the test. * * . *' ' Remember, too, tH-at Red Lead is. com- patible with pracdcally all vehicles com monly used in metal protective paints, including many of the fast-drying resin types. RED LEAD Improves ALL Metal Protective Paints The rust-resistant properties of Red Lead are so pronounced that it improves any metal protective. paint So, no matter what price paint you want, you'll get a better paint if it contains Red Lead. *. * * The benefit of our extensile experience with metal protective points for both underwater and atmospheric use is available through our technical staff. NATIONAL LEAD COMPANY: Neff York S; Buffalo 3; Chicago 8;-Cincinnati S; Cleveland 13; 8t Louts 1; San Philadelphia *7 (John TL Lewis & Bios.'co.); Pitts burgh 30 (National Lead Co. oT Pa.); Charleston 25. XV. Va.. ( ) DUTCH DOST 'StifD l e a d 9 KD-4022A--American Paint Journal, May 26-Paint, Oil and Chemical Review, May and October 2 ~k OOOO-NLI-O0OO15877 r