Va

poor improved sealant improved sealant

FIGURE 11.27 Elimination of water traps.

sealant sealant

FIGURE 11.28 Elimination of galvanic coupling.

Cu Alloy

FIGURE 11.28 Elimination of galvanic coupling.

poor improved poor improved lack of coverage lack of coverage poor improved

FIGURE 11.29 Elimination of poor profile (prior to coating).

turbulent flow nonturbulent flow

> J, turbulent flow erosion-corrosion and poor drainage poor improved

FIGURE 11.30 Elimination of erosion-corrosion.

2. Galvanic (bimetallic) coupling (Fig. 11.28)

3. Profile effects affecting coating coverage/adhesion (Fig. 11.29)

4. Erosion (flow-induced) corrosion (Fig. 11.30)

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