Investigation of Various Coating Resins for Optimal Anticorrosion and Mechanical Properties of Mild Steel Surface in NaCl Solution

Figure 7

FESEM images of samples coated with polyurethane resin (a) before corrosion and (b) after corrosion, epoxy resin (c) before corrosion and (d) after corrosion, polyester resin (e) before corrosion and (f) after corrosion, and phenolic resin (g) before corrosion and (h) after corrosion.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)