Photomicrograph of an air bubble entrapped in a lacquer film on mahogany panel.

Portrait of a problem .

Problems abound at every step in surface coating formulation and application. This portrait of a tiny blister represents only one of many challenges Shell Chemical techni­cians encounter in their continuing program of practical and theoreti­cal research.

Shell's high quality ketones, al­cohols, and intermediates, coupled with technical assistance to surface-coating formulators, lead to prod­

ucts of superior performance and greater economy. Use of the chemi­cals listed at the right can help you improve your line of products.

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Why not become better acquainted with the many chemicals and serv­ices that are available to you through Shell Chemical? Write or phone your nearest district office for information concerning your special field of interest.

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Acetone Diacetone Alcohol Di-Tertiary Butyl Peroxide Ethyl Alcohol Ethyl Amyl Ketone Glycerine Hexylene Glycol Isopropyl Alcohol Mesityl Oxide Methyl Ethyl Ketone Methyl Isobutyl Carbinol Methyl Isobutyl Ketone Neosol® Proprietary Solvent p-Tertiary Butyl Benzoic Acid Secondary Butyl Alcohol