Priolube™ 6050
Priolube™ 6050 is a next-generation synthetic ester co-base fluid designed to improve oxidative stability, hydrolytic stability, and biodegradability in hydraulic fluids and stern tube oils.
We recommend this product is used at the following typical treat rates:
Hydraulic fluids: 5-20%
Stern tube oils: 5-20%
Key Specs
| | Units | Value |
|---|---|---|
|
Kinematic viscosity at 40°C |
cSt |
130 |
|
Kinematic viscosity at 100°C |
cSt | 17.5 |
|
Biodegradability (OECD 301B) |
% | 74 |
|
Biobased carbon content (ASTM D6866) |
% | 86 |
Discover Priolube 6050
Product applications
Hydraulic fluids (EAL)
Regional availability
Europe
Physical form
Liquid
Brochures
Function & effects
Lubricity additive
Special certifications
Features & benefits
Superior oxidative stability
Priolube 6050 shows a significantly longer oxidation‑induction period than conventional base oils, indicating superior resistance to thermal oxidation.
Figure 1. Oxidative stability measured by RapidOxy tester (ASTM D7545). Sample pressurized to 700 kPa O₂ and held at 160 °C; oxidation is tracked as a pressure drop. The time to reach a 10% pressure decrease reflects the sample’s oxidative induction time.
Exceptional hydrolytic stability
Priolube 6050 demonstrates the lowest acid value increase over time, confirming excellent resistance to water‑induced degradation.
Figure 2. Hydrolytic stability of ester base oils evaluated using Swedish standard SS155181. Samples containing 10% water were held at 90 °C in a sealed conical‑flask, and ΔAcid Value was measured at 5, 8 and 15 days.
Efficiency gains at 40°C
Priolube 6050 maintains lower traction across operating and high‑temperature conditions, supporting improved efficiency and reduced wear.
Figure 3. MTM traction curves at 40 °C under 16 N load and 2 ms⁻¹ entrainment speed. Priolube 6050 exhibits a lower coefficient of friction across 0–100% SRR than unsaturated and saturated polyol esters and ISO 150 PAO blends, indicating reduced traction and improved efficiency at moderate operating temperatures.
Efficiency gains at 100°C
Priolube 6050 maintains lower traction across operating and high‑temperature conditions, supporting improved efficiency and reduced wear.
Figure 4. MTM traction curves at 100 °C under 16 N load and 2 m s⁻¹ entrainment speed. Priolube 6050 maintains lower traction than comparative ester and PAO systems across the SRR range, demonstrating stable low‑friction performance and efficiency benefits at elevated temperatures.