The electrochemical parameters extracted from the fitting of the EIS results of the neat epoxy sample after immersion in a corrosive 3.5% NaCl solution at various immersion times.

Sample	Time [day]	R s [Ω cm2]	Q coat [10−9 F cm2 sn−1]	n 1	R coat [104 Ω cm2]	Q dl [10−7 F cm2 sn−1]	n 2	R ct [105 Ω cm2]
Epoxy	3	3.2	2.91	1.00	61.24	—	—	—
	6	4.9	2.59	0.95	49.31	5.49	0.97	34.12
	10	2.3	1.98	0.92	45.54	9.26	0.94	29.81
	14	1.8	2.65	0.88	29.18	10.9	0.93	9.21
	18	1.3	5.29	0.87	5.31	14.71	0.87	7.51
	21	1.3	27.18	0.76	2.70	69.16	0.79	4.22