Description
Castrol Aircol 299 – Refrigeration Lubricants for Chemical and Thermal Stability
Description: The Castrol Aircol 299 range of refrigeration lubricants includes two grades of highly refined mineral oils, specifically selected to provide exceptional chemical and thermal stability. These lubricants have low wax forming tendencies, ensuring low pour points.
Application: The Castrol Aircol 299 range is designed for use in refrigeration and air conditioning systems utilizing fluorocarbon refrigerants. These oils’ excellent low-temperature characteristics prevent the flocculent precipitation of wax, which can occur in high-performance systems using Freon refrigerants. In systems using R22, the critical solution temperature properties of these oils prevent oil/refrigerant separation issues within low-temperature circuits. For exceptionally low evaporation temperatures or systems without oil/refrigerant separators, synthetic base refrigerant oils may be preferred.
Technical Data:
| Property | Method | Unit | Aircol 266 | Aircol 299 |
|---|---|---|---|---|
| Density at 15°C | ASTM D4052 | g/ml | 0.91 | 0.92 |
| Viscosity at 40°C | ASTM D445 | mm²/s | 32 | 55 |
| Viscosity at 100°C | ASTM D445 | mm²/s | 4.1 | 5.9 |
| Closed Flash Point | ASTM D93 | °C | 165 | 183 |
| Pour Point | ASTM D97 | °C | -40 | -36 |
| Floc Point | DIN 51351 | °C | -54 | -48 |
