Table 2. Comparative properties of applied coating on steel surface.

Reference (Ref.); Chemical Composition (CC; 1-2- 3 indicates different concentrations); Scratch hardness by Pencil Test (ASTM D3363); Adhesion tests (ASTM D3359); Water Contact Angle (WCA) º; Corrosion rate (mm/year; ASTM G102).

Ref.	CC	D3363	D3359	WCA	G102
FS-3	TEOS/MTES/FS	>4H	5B (0%)	63.1	0.304
MT-D	TEOS/MPTS	>8H	5B (0%)	62.4	0.034
MT-H	TEOS/PDMS-1	2H-4H	3B (5-15%)	113.0	0.018
MT-J	TEOS/MPTS/PDMS-2	>8H	5B (0%)	113.3	0.0002
MT-P	TEOS/PDMS-3	>8H	5B (0%)	108.6	0.00885