QUINTOLUBRIC® 888-68 (HFDu Fire Resistant Hydraulic Fluid)
Description
QUINTOLUBRIC® 888-68 does not contain water, mineral oil, or phosphate ester, and is based on high-quality, synthetic, organic esters and carefully selected additives to achieve great hydraulic fluid performance.
QUINTOLUBRIC® 888-68 offers the lubrication level of premium, anti-wear hydraulic oils, and can be used with hydraulic components from all major manufacturers.
Key Benefits
- Improved security against fire
- Factory Mutual Approved
- Excellent shear stability
- Reduced environmental impact
- Global formulation
- Best in class oxidation stability
Properties
| Property | Typical Value | Unit |
| Appearance/Colour | Yellow to amber fluid | [ – ] |
| Viscosity Index (ASTM D2270) | 185 | |
| Density at 15ºC (ASTM D1298) | 0.92 | g/cm³ |
| Acid Number (ASTM D974) | 2.0 | mg KOH/g |
| Kinematic Viscosity (ASTM D445) at 0ºC at 20ºC at 40ºC at 100ºC | 554 135 68 12.5 | mm²/s or cSt |
| Pour Point (ASTM D97) | <-30(<-22) | °C (°F) |
| Foam Test at 25°C (ASTM D892) Sequence 1 | 50-0 | ml-ml |
| Corrosion Protection ISO 4404-2 ASTM D665A/D130 | Pass Pass/1a | |
| Dry TOST (ASTM D943 mod.) | 800 | hrs |
| Flash Point (ASTM D92) | 304 (572) | °C (°F) |
| Fire Point (ASTM D92) | 360 (680) | °C (°F) |
| Air Release (ASTM D3427) | 7 | min. |
| Vane Pump Test (ASTM D2882) | <5 | mg wear |
| Gear Lubrication (DIN 51354-2) | >12 | FZG load stage |
| Water Separability (ASTM D1401) | 41-38-0 (30) | ml-ml-ml (min.) |
Health, Safety and Handling
Please consult the Safety Data Sheet (SDS) for information on storage, safe handling and disposal. The conditions or methods of handling, storage, use and disposal of the product are beyond our reasonable control – we assume no liability for any ineffectiveness of the product or any injury or damage, arising out of or in connection with these conditions.
Applications
QUINTOLUBRIC® 888-68 was designed to replace anti-wear, mineral oil-based hydraulic fluids used in applications where fire hazards exist.
QUINTOLUBRIC® 888-68 can also be used in environmentally sensitive hydraulic applications without compromising the overall hydraulic system operations.
Compatibility
Metal
QUINTOLUBRIC® 888-68 is compatible with iron and steel alloys and most nonferrous metals and their alloys. It is not compatible with lead, cadmium and has limited compatibility with alloys containing high levels of these metals. QUINTOLUBRIC® 888-68 has limited compatibility with hot dipped or electro galvanised surfaces and great compatibility with zinc containing alloys. Suitable substitutes for these materials are available and should be used.
Paints and Coatings
QUINTOLUBRIC® 888-68 is compatible with multicomponent epoxy coatings. It shows limited compatibility with one component (zinc-dust containing) coatings. Specific coating and application recommendations can be obtained from coating manufacturers or directly from Quaker Houghton.
Fluids
QUINTOLUBRIC® 888-68 is compatible and miscible with nearly all mineral oil, phosphate esters and polyolester-type hydraulic fluids. It is not miscible or compatible with water-containing fluids. For conversion recommendations, please contact Quaker Houghton
Elastomers
The following chart contains our recommendations regarding the use of QUINTOLUBRIC® 888-68 with commonly used elastomers. The elastomer applications listed are “Static,” which refers to trapped nonmoving seals such as O-rings in valve sub-plates and rigid, low pressure hose connections; “Mild-Dynamic,” whose applications include accumulator bladders and hose linings where the hoses are exposed to high pressure and light flexing; and “Dynamic,” which refers to cylinder rod seals, pump shaft seals and constantly flexing hydraulic hose.
| ISO 1629 | Description | S* | MD* | D* |
| NBR | Medium to high nitrile rubber (Buna N,>25% acrylonitrile) | C | C | C |
| FPM | Fluoroelastomer (Viton®) | C | C | C |
| PU | Polyurethane | C | C | C |
| CR | Neoprene | S | S | S |
| IIR | Butyl rubber | S | N | N |
| EPDM | Ethylene propylene rubber | N | N | N |
| PTFE | Teflon® | C | C | C |
**(S- Static, MD- Mild Dynamic, D- Dynamic)
C = Compatible
S = Satisfactory for short term use, but replacement with a completely
compatible elastomer is recommended at the earliest convenience.
N = Not Compatible