Issue Date: June 2025
Revision: 01
Doc No: ACS-TDS-HY-HVLP
Aerosil Hydro HVLP
High-VI Hydraulic Fluid (HVLP)
1. Product Description
2. Typical Physical & Chemical Properties
Typical values — not to be used as specification limits. Test methods per ISO/ASTM/DIN standards.
| Property | ISO 32 | ISO 46 | ISO 68 |
|---|---|---|---|
| Kinematic Viscosity @ 40°C (mm²/s) | 28.8–35.2 | 41.4–50.6 | 61.2–74.8 |
| Kinematic Viscosity @ 100°C (mm²/s) | 6.2 | 8.1 | 11.0 |
| Viscosity Index | ≥ 150 | ≥ 150 | ≥ 150 |
| Density @ 15°C (kg/m³) | 858 | 864 | 870 |
| Flash Point COC (°C) | ≥ 180 | ≥ 185 | ≥ 190 |
| Pour Point (°C) | ≤ −36 | ≤ −33 | ≤ −30 |
| Zinc Content (ppm) | 900–1100 | 900–1100 | 900–1100 |
| Copper Corrosion (3h/100°C) | 1b | 1b | 1b |
| Water Separability (54°C, min) | ≤ 30 | ≤ 30 | ≤ 30 |
| Foam Tendency Seq I/II/III (ml) | ≤ 20/0/20 | ≤ 20/0/20 | ≤ 20/0/20 |
| Air Release (50°C, min) | ≤ 5 | ≤ 6 | ≤ 8 |
| Filterability (Dry, %) | ≥ 85 | ≥ 85 | ≥ 85 |
3. Performance Features & Benefits
- Very high viscosity index (VI ≥ 150) — minimal viscosity change across wide temperature range
- Excellent cold-start performance — low pour point ensures reliable operation in cold climates
- Zinc-based anti-wear (AW) package — protects pumps and valves under high-pressure conditions
- Outstanding oxidation and thermal stability — extended drain intervals vs. standard HLP oils
- Excellent rust and corrosion protection for ferrous and non-ferrous metals
- Low foam tendency and rapid air release — ensures precise hydraulic control
- Good filterability and compatibility with fine filtration systems
- Compatible with standard hydraulic seals (NBR, FKM, PTFE)
4. Applications
- Mobile hydraulic systems (excavators, cranes, agricultural machinery)
- Stationary hydraulic systems with wide ambient temperature variation
- Outdoor equipment operating in cold climates (pour point ≤ −30°C)
- Hydraulic systems requiring consistent viscosity across −20°C to +90°C
- Servo-hydraulic and proportional valve systems requiring stable fluid viscosity
5. Approvals & Specifications Met
6. Packaging
- 20 L Pail
- 208 L Drum
- 1000 L IBC
Custom pack sizes available on request.
7. Storage & Handling
Store in a cool, dry, well-ventilated area. Keep containers sealed to prevent moisture ingress. Shelf life: 36 months in original sealed container.
Avoid prolonged skin contact. Use nitrile gloves and safety glasses. Do not mix with other hydraulic fluids or gear oils. Refer to SDS for full guidance.
8. Health, Safety & Environment
A Safety Data Sheet (SDS) is available upon request and must be consulted before use. This product is not classified as hazardous under CLP/GHS regulations at normal operating conditions. Dispose of used oil in accordance with local environmental regulations. Do not discharge to drains, water courses, or soil. Contains zinc compounds — refer to SDS for environmental precautions.
Disclaimer: The information contained in this Technical Data Sheet is based on tests believed to be reliable and is offered in good faith. The data is typical of the product and should not be used to establish specification limits. Aerosil Chemsol Specialties B.V. reserves the right to modify product formulations and specifications without prior notice. Users should verify suitability for their specific application. Aerosil Chemsol Specialties B.V. accepts no liability for any loss or damage arising from the use of this information.