After 5 years, the paint film is still intact—smooth and unbroken. Note closeup. Tanks were sandblasted to metal before spray application of two coats of Epon resin ester red primer. Next, two coats of Epon resin ester white enamel were applied. Average total film thickness: 5 mils.
Paint Formulators:
Tank finish based on Shell Epon9 resin ester is still in excellent condition after five years' exposure to Houston humidity and sun This is performance that sells. Epon resin esters you can give maintenance paints, floor finishes, motive primers and others the sales benefit of extra durability.
With your autosame
LISTERING sunlight, pelting rains, high humidity and corrosive atmospheres have had little effect on the Epon resin ester finish of a tank farm near Houston, Texas. It has retained its attractive appearance through five years* exposure — still provides complete protection for the tanks. This is not an unusual performance record for paints based on Epon resin esters. You can formulate a broad line of trade sales and industrial finishes with these vehicles and obtain the same basic sales benefits—superior adhesion, flexibility and resistance to chemicals and exposure. But there are still more benefits. You
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can "tailor-make" these vehicles for specific applications. Air-dry finishes For example, an ester vehicle made with soya or linseed fatty acids offers excellent hardness, gloss, and resistance to chemicals and wear. It's ideal for making highbuild maintenance paints that combine ease of application with the air-drying qualities of oil and alkyd-based paints. Baking finishes On the other hand, an ester vehicle made with dehydrated castor acids offers good color, color retention and fast baking properties. Optimum hardness and chem-
ical resistance are obtained when the estei is modified with a small amount of urea or melamine resin. By proper choice of solvents, finishes based on Epon resin esters can be formulated for application by dipping, rollei coating, brushing or spraying. Send for complete information about Epon resin ester systems —their properties, applications, and where you can buy the prepared vehicles. Or, if you prefer, we'll be glad to tell you how to make your own esters. Get in touch with your nearest Shell District Office, or write: Shell Chemical Company, Plastics & Resins Division, 110 West 51st Street, New York 20, N.Y.
Shell Chemical Company
SHELL
Plastics and Resins Division C&EN
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