Water absorption (%), after sealing | Water absorption (%) | Sample No. |
1.93 | 9.01 | 1 |
1.4 | 9.27 | 2 |
0.78 | 8.70 | 3 |
1.37 | 9.80 | 4 |
0.33 | 9.47 | 5 |
1.52 | 9.31 | 6 |
1.22 | 9.26 | Average |