Advances in Polymer Technology

Research Article

Corrosion Resistance Synergistic Appraisal of Titanium-Impregnated Bisphenol A-Type Epoxy Duplex Coating System in Stimulated and Natural Marine Environments of Southeastern Coastal Area of China–Pakistan Economic Corridor

Table 4

Results of heat resistance testing of the virgin epoxy coating and titanium-embedded epoxy coatings after 24 hours of heating followed by open-air exposure and dipping in distilled water as per ASTM D2485.


Coating systems	Heat resistance test
Coating systems	Placed in open air after heating	Grade	Dipped in distilled water after heating	Grade

T₀	Fair color stability with roughness on the surface	Passed (B)	Loss of gloss and a slight change in color	Passed (B)
T₅	Better color stability	Passed (A)	Loss of gloss and good color stability	Passed (B)
T₁₀	Better color stability	Passed (A)	Loss of gloss and good color stability	Passed (B)

T₀: virgin epoxy coating; T₅: 5% titanium-embedded epoxy coating; T₁₀: 10% titanium-embedded epoxy coating. ASTM specifications: accepted (A and B), failed (C and D).