Opteon™ SF79 is commonly used as a replacement / alternative for 3M™ Novec™ 71DE, offering comparable cleaning performance for precision electronics cleaning and vapor degreasing applications.
| Property | Novec™ 71DE | Opteon™ SF79 |
|---|---|---|
| Composition | 90% Novec 7100 + 10% Ethanol | Proprietary fluorinated blend |
| Boiling Point | ~61 °C | ~60–65 °C |
| Freezing Point | < −50 °C | < −50 °C |
| Density (25 °C) | ~1520 kg/m³ | ~1500–1550 kg/m³ |
| Kinematic Viscosity | ~0.4–0.6 cSt | ~0.5–0.7 cSt |
| Dielectric Constant | ~7 | ~6–7 |
| Surface Tension | ~13–15 dynes/cm | ~14–16 dynes/cm |
| Evaporation Rate | Fast | Fast |
| Flammability | Nonflammable | Nonflammable |
| GWP / ODP | Low GWP / Zero ODP | Low GWP / Zero ODP |
| Materials Compatibility | Excellent | Excellent |
| Typical Use | Precision cleaning, vapor degreasing | Cleaning and defluxing applications |
