| Color fastness to chlorinated water | ||||
| Sample | Unfinished | FC | FC + D | FC + B |
| Color change | Color change | Color change | Color change | |
| Rib | 4 | 3 - 4 | 4 | 3 - 4 |
| Interlock | 4 | 3 - 4 | 3 - 4 | 3 - 4 |