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QUINTOLUBRIC 888-46, synthetic HFD-U fire-resistant hydraulic fluid, ester-based, high viscosity index
Description
QUINTOLUBRIC 888-46 is a synthetic HFD-U (fire-resistant) hydraulic fluid based on organic esters and anti-wear additives. It delivers premium AW-level lubrication and, thanks to excellent oxidation and shear stability, suits installations where fire safety and reduced environmental impact are critical.
Benefits and unique features
- Synthetic ester formulation – high oxidation and shear stability
- HFD-U class – use in fire-hazard areas
- High thermal robustness: flash point about 300 °C, fire point about 360 °C
- Low pour point < −30 °C – reliable cold starts
- High viscosity index – stable viscosity across temperatures
- Excellent lubricity (FZG > 12) and low foaming
- Reduced environmental impact, high biodegradability
Properties and applications
- Fire-risk applications: replacement for mineral AW oils in presses and heavy-industry hydraulics
- Environmentally sensitive sites: operation without compromising overall system performance
- Materials compatibility: suitable with many metals; elastomers NBR/FKM/PU/PTFE – compatible; EPDM and IIR – not recommended
- Fluid compatibility: miscible with most mineral, phosphate-ester and polyester-type fluids; not miscible with water-containing fluids
Technical parameters
| Parameter | Value |
|---|---|
| Product type | Fire-resistant HFD-U hydraulic fluid (synthetic esters) |
| Appearance/Color | Yellow to amber fluid |
| Kinematic viscosity (40 °C) | 47.5 mm²/s |
| Kinematic viscosity (100 °C) | 9.4 mm²/s |
| Viscosity index | 185 |
| Density (15 °C) | 0.92 g/cm³ |
| Acid number | 2.0 mg KOH/g |
| Pour point | < −30 °C |
| Flash point (ASTM D92) | 300 °C |
| Fire point (ASTM D92) | 360 °C |
| Foam test (Seq. I, 25 °C) | 50-0 ml-ml |
| Air release (ASTM D3427) | 7 min |
| Gear lubrication (DIN 51354-2) | > 12 (FZG) |
| Water separability (ASTM D1401) | 41-39-0 (25 min) |
| Biodegradability (OECD 301c) | 86.5% after 28 days |
| Hot manifold auto-ignition temperature (ISO 20823) | > 450 °C |
| Transport classification | Not classified as dangerous goods |
Storage recommendations
Store in the original, tightly closed container in a dry, well-ventilated place away from ignition sources. Avoid water contamination. Consult the Safety Data Sheet (SDS) and manufacturer’s recommendations before use.
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