Page 636 - Corrosion Engineering Principles and Practice

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Estimated Service Life for Practical Maintenance Coating Systems for Atmospheric Exposure (in Years before First Maintenance
8
14
9
11
5
9
8
11
14
5
17
8
14
11
12
20
13
17
23
18
2.5
1.5
1.5
1.5
2.0
2
3
2
2
2
Hand/power
Blast
Blast
Blast
Blast
Epoxy 100% solids/penetrating sealer/polyurethane
Coating Systems for Atmospheric Exposure Number Surface C 5-M C 5-I C 3 C 2 DFT of Coats Preparation (primer/midcoat/to coat) 5 5 8 12 1.5 3 Hand/power Acrylic waterborne/acrylic WB/Acrylic WB 9 9 12 17 1.5 3 Blast Acrylic waterborne/acrylic WB/Acrylic WB 2 2 3 6 1.0 2 Hand/power Alkyd/alky
Epoxy/polyurethane
Epoxy/epoxy/epoxy
Epoxy/epoxy
Epoxy/epoxy
Type Acrylic Acrylic Alkyd Alkyd Alkyd Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy TABLE 14.2 Painting) [9]