| Water surface temperature (˚C) | Reduction in evaporation (%) | ||
| Cetyl alcohol | Stearyl alcohol | Cetyl-Stearyl alcohol | |
| 20 | 60.1 | 82.5 | 80.3 |
| 30 | 35.8 | 70.5 | 64.7 |
| 40 | 24.7 | 55.9 | 54.7 |
| 50 | 18.6 | 42.9 | 40.7 |
| 60 | 13.8 | 30.9 | 29.1 |