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In the “‘Leviathan’’—theworld’slargest steamship—THORKOTE was used. As further evidence read this remarkable letter: UNITED STATES LINES 45 Broadway New York Thorkote Products Co., Inc., 135 Liberty Street, New York, N. Y. Gentlemen: : When the S.S. “LEVIATHAN” drydocked at Boston in Feb- ruary 1925, the space within the stern tubes that extend between the outer and inner bearings, were cleaned and painted with two coats of THORKOTE paint. Upon arrival of that vessel at the drydock in Boston during February cf this year, three of these tailshafts were withdrawn and the condition of the THORKOTE was found to be as good as when applied. This I consider a most remarkable performance. We had tried many different materials for coating this section of the vessel without success. The propeller shafts average 180 revolutions at sea, and ‘this causes a violent circulation of the water in this locality, usually working the sea water into quite a foam. This we have proven by drawing off watér in this location when vessel was at sea, and proves the performance of the THORKOTE to be mest satis- factory. The Chief Engineer of the S.S. ‘““LEVIATHAN’’ has painted the water boxes of the main condensers with THORKOTE and it has also given satisfactory results in that place, I believe that you willlike to. hear the results of your material, especially as it is given withcut having been asked for, and no mctive is attached to giving informaticn cther than to assist other superintendents who are troubled with corrosion.—Yours ie W. L. BUNKER, WLB-LJ Superintendent Engineer. March 2, 1926 Thorkote Products Com pany, Inc. NATIONAL Diesel Engine Forgings We manufacture High Grade Carbon and Alloy Steel Forg- ings, furnished smooth forged, rough turned, heat treated and finished complete; specializing in Diesel Engine Forgings, Hollow Bored Forgings, rough or finished bored, and Ordnance Work. National Forge & Ordnance Co. IRVINE, WARREN CO., PENNA. Bell Phone: 55 Youngsville, Pa. Thorkote Has Won Facts Are The Best Proof of Quality THORKOTE FoR years Steamship Owners and Operators, Engineers and Naval Architects have sought a waterprocf covering for Magnesia and other heat insulating materials, which could be easily applied and repaired and which would not be eaten away by rust. This has finally been found and we offer to those seeking the maxi- mum of efficiency —THORKOTE. THORKOTE is a plastic material easily applied over insulating materials. It becomes hard shortly after application making an ideal covering for Boilers, Tanks, Feed Water and Oil Heaters. Brine Tanks, and Ccolets, Deck Lines, Thermo Coil Heater Housings, etc., Cog if or Cut your port fuel charges by insulating your deck steam lines and protect this insulation with THORKOTE. : Deck steam lines in the past have as a general rule been left un- insulated because there was no practical protection for the insulation. You can now insulate your deck lines, cover with THORKOTE and take advantage of the fuel savings to be derived. THORKOTE CEMENTS FOR Tank Tops—Bilges Tail Shafts—Rudders Fore-After Peak Tanks Smoke Stacks Domestic—F-W Tanks Canvas Decks Coal Bunkers—Helds Standing Rigging Each branch of insulation especially studied and treated with regard to conditions and requirements. A LIST OF SATISFIED CUSTOMERS WILL BE FURNISHED ON REQUEST 135 Liberty St. New York Always ~ there to Protect— For more than 80 years this famous Marine Glue has given perfect protection to decks of all kinds of vessels. It has withstood the stress and strain of raging seas and the severe test of heat and cold. IT HAS MADE ALL KINDS OF BOATS LEAK-PROOF. Jeffery’s Marine Giue saves because it lasts three or four times longer and it gives abso- lute security against leakage. Sold by Ship Chandlers and Marine Supply Stores Write for booklet—‘‘MARINE GLUES—What to Use and How to Use it.’’ e. ping e LW. Ferdinand &C | I Kneeland Street. Boston,Mass.| et MARINE REVIEW—May, 1927 67 Branch Offices Chicago Cleveland New York Detro‘t Be