| High pressure curing period | Interval between immersion and measurement | Measurements |
| 72 h | 72 h | SEM, SPM(Surface geometry) |
| 24 h | 24 h | FE-SEM/EDS, SPM (Surface geometry, surface potential and frictional force) |
| 24 h | 1 month | SPM(Surface geometry, surface potential, frictional force and viscoelasticity) |