- Colorless, excellent light transmittance
- Odorless, eco-friendly and comfortable to operate
- High thermal stability, long service life
- Low kinematic viscosity at low temperatures, good fluidity
- Suitable for closed-loop temperature control systems
UOLEN®40 fluid has a temperature range of –40°C to 235°C (-40°F to 455°F)
without overpressure or up to 250°C (482°F) with appropriate level of system pressurization.
Laboratory research, petrochemical Industry, biopharmaceutical, pesticide synthesis,
food processing, HVAC, cold storage, automotive, aerospace, and other fields.
| Item | Characteristic Parameter | |
| Appearance | Colorless transparent liquid | |
| Composition | Synthetic hydrocarbons | |
| Density (at 20°C/68°F) | 0.768g/cm³ | |
| Moisture content, max. | 100 ppm | |
| Flash point | 100°C(212°F) | |
| Autoignition temperature | 352°C(665.6°F) | |
| Viscosity | -50°C(-58°F) | 70.81mm²/s |
| -40°C(-40°F) | 27.62mm²/s | |
| -20°C(-4°F) | 12.98mm²/s | |
| 40°C(104°F) | 2.11mm²/s | |
| Pour point | <-65°C(-85°F) | |
| Specific heat (at 100°C/212°F) | 2.39 KJ/(kg·k) | |
| Thermal conductivity (at 100°C/212°F) | 0.1143(w/m·k) | |
| Average boiling point | 241°C(410°F) | |
| Total acidity | <0.01mg/kg(KOH) | |
| Sulfur content | <10 ppm | |
| Chlorine content | <10ppm | |
| Copper strip corrosion (at 100°C/212°F,3h) | <1a | |
| Expansion coefficient (at 100°C/212°F) | 0.000733K-¹ | |
| Max. bulk temperature | 250°C(482°F) | |
| Max. film temperature | 275°C(527°F) | |
| *The above data are obtained from laboratory tests on samples and may vary between batches. | ||