1160
JOURNAL OP CEEMICAL EDUCATION
DECEMBER, 1925
CRODON: THE NEW CHROME ALLOY PLATE CHEMICAL TREATMENT CO., INC.. NEW YORK, N. Y.
Commencing with the later years of the 19th century and extending up to the present, there has been a constantly growing appreciation on the
part of cheinists and metallurgists of the distinct and valuable properties of chromium and its alloys. More particularly, the properties of hardness and rust-resistance have led to the development and perfection of a number of alloys which have found wide application in industry and the arts. It has long been apparent that there would be a large field and hundreds of uses for a thin plate or sheathing of chromium over other metals, particularly in the case of products where the hardness of such a plate would make it possible to use a base metal more easily machined than the hard chrome alloys, and also where rust resistance is a factor of importance. Among the first to apply themselves to the solution of this problem was Dr. Colin G. Fink, head of the electro-chemical department of Columbia University, who is internationally known as the discoverer of the electrochemical process by which ancient corroded metals are restored to their original form by a reversal of the process of corrosion. The result, after years of experimentation and research, was the perfection of Crodon. Crodon is an alloy composed almost entirely of metallic chromium. Applied by the new Fink process as a plate over other metals, it has the following properties: 1. Hardness: In the harder grades, harder than the hardest steel. 2 . Rust-proof: Resists rust, tarnish, and corrosion indefinitely. No polishing required on Crodon-plated articles. 3. Acid-proof: Immune to the attack of practically every acid. 4. Heat Resistance: Crodon plate will withstand temperatures up to 2500 O F . 5. Tightness: A Crodou plate will not chip, crack, or peel. 6. Surface Wear: So resistant to surface wear that the usual buffing compounds will not strip a Crodon plate. 7. Finish: For different uses Crodon can be applied in a variety of finishes ranging from a dull satim to a bright high-luster polish. 8. Color: Where appearance is a factor, Crodon possesses a basis of individuality in its soft blue sheen akin to that of platinum, which permits of no confusion with nickel plate.
