Example 3 Prime Coat and Top Coat Painting of Cold Rolled Steel Parts

One company that had been painting cold rolled steel products with one coat of baking primer and one topcoat of baking enamel needed to expand production facilities. One method would have been to set up a duplicate finishing line. It was found, however, that an acceptable finish could be obtained by priming with an air drying, flash primer and finish painting with a topcoat of baking enamel. Rather than adding a complete painting line, only two prime booths for applying the primer and flash-off leg on the conveyor, to permit the primer to air dry, had to be added, saving a capital expenditure of several thousand dollars.

Numerous other examples could have been cited. Coating manufacturers and equipment suppliers can provide valuable assistance in the selection of an appropriate coating system for a desired product finish.

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