Page 642 - Corrosion Engineering Principles and Practice

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SW
14
8
6
FW
17
8
9
PW
—
10
12
DFT
2.0
1.5
4.1
of Coats
2
2
2
Preparation
Blast
Blast
Blast
Coating Systems for Immersion Service Number Surface C h a p t e r 1 4 11 12 15 2.5 3 Blast Epoxy/epoxy/epoxy 15 17 20 2.3 2 Blast Zinc metallizing/epoxy 18 20 24 3.3 3 Blast Zinc metallizing/epoxy/epoxy All estimates (in years) are for the “Practical” life of the system. Practical l
(primer/midcoat/topcoat)
Coal tar epoxy
Epoxy/epoxy
Epoxy/epoxy
Type Epoxy Epoxy Epoxy Epoxy Metallizing Metallizing Notes: 1. Service Life Estimates: 3. DFT is the dry film thickness in mm. 4. Service Life Environment Definitions: 5. Typical Maintenance Painting Sequence: Maintenance Repaint occurs at “P” Life + 33% (“P” × 1.33) TABLE 14.3 Maintenance Paintin