Isopropanol concentration	Contact angle		Contact angle	
%	deg.		deg.	
	Zone 1		Zone 3	
0	154.5	0.5	154.75	0.25
3.4	151.5	1.5	151.5	1
5.9	152.5	1	150	4.5
8.6	144.75	2.75	147	2
11.2	119	3	137	4
13.6	80	2	123	3.5
15.6	39.5	2	77.5	2.5