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

Table 2

Anticorrosion and mechanical test results.

Sl. No.	Specimen	Corrosion resistance by resin (mils)	Ultimate tensile strength (N/mm^2)	Toughness (N/mm)	Scratch hardness (mg)
1	Plain mild steel	—	456.23 ± 9.12	—	150.00 ± 3
2	Polyurethane resin	635.85 ± 12.71	485.63 ± 9.71	5893.224	800.00 ± 16
3	Epoxy resin	4102.29 ± 82.04	505.82 ± 10.12	7057.32	700.00 ± 14
4	Polyester resin	1233.38 ± 24.66	474.54 ± 9.49	6738.417	300.00 ± 6
5	Phenolic resin	1414.97 ± 28.29	491.47 ± 9.82	5394.345	300.00 ± 6