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In hidden corners where meetsSteel No structure is stronger than its details. It is in such outof-the-way earners as thatpic tured below that corrosion is likely to start. In hidden corners corrosion works unseen -- here a tough, durable shield of pure red-lead is more than ever important Paint made of 100 founds Dutch Soy red-lead and 2} gallons linseed oil gives these bridge details the best possible protection. Use three coats.- ORROSION is a constant menace to all steel tionnaire sent to representative engineers in all C work. Bat there are certain out-of-the-way branches cf the profession. places where the danger from corrosion is multi Two hundred and six engineers answered the plied, where unusual care must be taken if the metal questionnaire. And 179 of them -- 85% -- said they is to be kept intact. use, specify or recommend pure red-lead for metal Inside latticed beams, the underside of steel foot protection. ings, lapped plates, the interiors of built-up col umns--in such hidden places corrosion often gets its start. And if these parts aie weakened, the strength of the entire structure may be threatened. There is no better red-lead than Dutch Boy redlead. You can get it in paste or liquid form. The liquid comes in the natural orange-red for next-tometal coats, and also in greens, browns and black Surfaces that will be in contact should receive for finishing coats. The paste is obtainable in the heavy coats of pure red-lead. These surfaces must orange-red and can be shaded to dark colors. have the best possible protection. We maintain a special technical staff to help in Parts of steel structures that will be exposed, but the solution of painting problems. Write them in inaccessible after erection for painting, should also care of our nearest branch. receive special care. Three heavy coats of pure red- lead should be used on all such parts before they are assembled. 179 Engineers endorse red-lead Pure red-lead is the accepted paint of the engineer ing profession. Wherever there is metal to protect, engineers are almost unanimous in their use of this protective paint. This fact was proved by a ques- NATIONAL LEAD COMPANY Vew York, m Broadway Boston, 131 State St. Buffalo, 116 Oak St. Chicago, goo West 18th St. Cincinnati,659 Freeman A'.e. Cleveland, S20 West Superior Ave, St. Louis, 721 Chestnut St. San Francisco,485 California St Pittsburgh, National Lead U Oil Co. of Pa., 316 Fourth Ave. Philadelphia, John T. Lewis & Bros. Co., 437 Chestnut St. DUTCH BOY RED-LEAD Thia advertisement appears in Engineering News-Record, January 6, 1927, Railway Age, January 1, 1927 OOOO-NLi-OOOOl 7623