Petronas Hydraulic HFDU 46
Ester-based fire-resistant synthetic hydraulic oil, HFD-U type, readily biodegradable
- Biodegradable hydraulics
ISO VG 46
Biodegradable synthetic hydraulic fluid for environmentally sensitive areas
Biodegradable hydraulic fluid HEES — ISO 15380
Class HEES of ISO 15380: a biodegradable hydraulic fluid on a synthetic ester base.
USDA BioPreferred program
US federal program for biobased products (including lubricants), with preferred federal purchasing and a certification label.
The European Union's voluntary ecolabel for products, including lubricants, with reduced environmental impact across their life cycle.
US EPA Vessel General Permit (VGP)
EPA permit requiring environmentally acceptable lubricants at oil-to-sea interfaces of vessels.
| Property | Typical value | Method |
|---|---|---|
| Viscosity grade | 46 | |
| ISO fluid type | HEES | ISO 6743-4 |
| Kinematic viscosity @-20°CcSt | 1 522 | ASTM D445 |
| Kinematic viscosity @40°CcSt | 47.2 | ASTM D445 |
| Kinematic viscosity @100°CcSt | 9.41 | ASTM D445 |
| Viscosity index | 188 | ISO 2909 |
| Density @15°Ckg/m3 | 921 | ISO 12185 |
| Flash point (Cleveland Open Cup)°C | 320 | ISO 2592 |
| Pour point°C | -42 | ISO 3016 |
| Biodegradable% 28days | 76 | OECD 301B |
| Autoignition Temperature°C minimum | 400 | ASTM D659 |

Environmentally acceptable, synthetic hydraulic fluid. Shell Naturelle S2 Hydraulic Fluid 46 is an advanced hydraulic fluid for use in hydraulic and power transmission systems. Readily biodegradable with low ecotoxicity, it is particularly suited for use in environmentally sensitive areas. Fully synthetic esters, blended with ashless additives, give it an excellent blend of lubrication performance and environmental acceptability. ISO VG 46 grade with a kinematic viscosity of 47.2 cSt at 40 °C and a viscosity index of 188. It is a less flammable fluid with a high flash point. Bulk operating temperature should not exceed 90 °C.
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