Coating thickness of the coated samples.

	1st reading	2nd reading	3rd reading	Average reading μm
Zn-ESAp
0% ESAp	91	92	99	94
2% ESAp	98	99	100	99
4% ESAp	104	105	104	103.3
6% ESAp	125	130	128	127.7
8% ESAp	124	130	130	128
Zn-ESAp + 2% Starch
0% ESAp	94	95	99	96
2% ESAp	99	99	100	99.3
4% ESAp	106	107	104	105.67
6% ESAp	130	130	128	129.3
8% ESAp	135	130	130	131.6