Page 691 - Corrosion Engineering Principles and Practice
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644   C h a p t e r   1 4                              P r o t e c t i v e   C o a t i n g s    645

























                      FIGURE 14.24  Measuring surface profile depth using Testex micrometer.
                      (Courtesy of KTA-Tator, Inc.)


                         Dry film gauging: Electrical and magnetic nondestructive and visual
                         destructive equipment for determining thickness are described in
                         several places (Figs. 14.26 and 14.27).
                         Coverage completeness: Coverage completeness can be checked by
                         using different colors of multiple coats or conductive and non-
                         conductive coats.



























                      FIGURE 14.25  Notch-type wet film thickness gauges (top: stainless steel;
                      bottom: aluminum). (Courtesy of KTA-Tator, Inc.)
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