Houghton International Inc QUINTOLUBRIC 888 46 (5-USgl)

Additional Product Information

Overview

QUINTOLUBRIC 888-46 is a fire-resistant HFD-U synthetic ester hydraulic fluid engineered to replace conventional anti-wear mineral oil-based hydraulic fluids in high fire-risk environments. In aviation and MRO operations, it is used in ground support equipment, hydraulic rigs, and specialized systems where fire safety and environmental performance are critical. Maintenance teams rely on it for its high auto-ignition temperature, excellent wear protection, oxidation stability, and biodegradable formulation—ensuring operational safety without compromising hydraulic efficiency.

Key Technical Specs for QUINTOLUBRIC 888-46

• Type: Fire-resistant HFD-U synthetic organic ester hydraulic fluid
• ISO Grade: ISO VG 46
• Color: Yellow to amber fluid
• Density @ 15°C (59°F): 0.92 g/cm³
• Kinematic Viscosity: 47.5 cSt @ 40°C (104°F); 9.5 cSt @ 100°C (212°F); 109 cSt @ 0°C (32°F)
• Viscosity Index: 190
• Flash Point (ASTM D92): 300°C (572°F)
• Fire Point: 360°C (680°F)
• Auto Ignition Temperature (ISO 20823): > 450°C (> 842°F)
• Pour Point (ASTM D97): < -30°C (< -22°F)
• Oxidation Stability (Dry TOST ASTM D943 mod.): 800 hours
• Biodegradability (OECD 301C): 86.5% after 28 days
• FZG Load Stage (DIN 51354-2): > 12
• Vane Pump Wear (ASTM D2882): < 5 mg wear
• Water Separability (ASTM D1401): 41-39-0 (30 min)
• Acid Number (ASTM D974): 2.0 mg KOH/g
• Typical Uses: Fire-resistant hydraulic systems, aviation ground support hydraulics, industrial hydraulic power units

Approvals & Specifications

• Classification: HFD-U Fire-Resistant Hydraulic Fluid
• ISO 20823 – Hot Manifold Auto Ignition Temperature
• ASTM D92 – Flash and Fire Point
• ASTM D445 – Kinematic Viscosity
• ASTM D2270 – Viscosity Index
• ASTM D943 (Modified) – Oxidation Stability
• DIN 51354-2 – FZG Gear Test
• OECD 301C – Biodegradability
• Compatible with hydraulic components from major global manufacturers

Typical Aircraft MRO / AOG Applications

• Hydraulic systems in aviation ground support equipment (GSE)
• Hydraulic test benches and maintenance rigs
• Hangar door hydraulic actuation systems
• Aircraft jacking and lifting hydraulic systems
• Power units operating in fire-sensitive maintenance zones
• Hydraulic systems in environmentally sensitive airport locations

Compatibility & Safety Notes

• Compatible with iron, steel, and most nonferrous alloys
• Not compatible with lead or cadmium; limited compatibility with high-lead alloys
• Limited compatibility with hot-dipped or electro-galvanized surfaces
• Miscible with mineral oil, phosphate ester, and polyolester hydraulic fluids
• Not compatible with water-containing hydraulic fluids
• Compatible with many elastomers including FPM (Viton), NBR (>25% acrylonitrile), EPDM (static/mild dynamic applications)
• Use appropriate PPE including gloves and eye protection during handling
• Consult Safety Data Sheet (SDS) for storage, disposal, and hazard information

Packaging & Procurement

• Available in drums, pails, totes, and bulk supply options
• Standard industrial packaging suitable for aviation MRO inventory systems
• Store in tightly sealed containers away from moisture contamination
• Designed for straightforward system conversion with proper flushing procedures
• Global formulation supports international supply chain requirements

Why QUINTOLUBRIC 888-46 is Chosen for AOG / MRO

• High fire resistance enhances safety in hangar and maintenance environments
• Premium anti-wear protection reduces unplanned downtime
• Excellent oxidation stability extends service intervals
• Environmentally responsible formulation supports compliance initiatives
• Reliable viscosity performance across wide temperature ranges
• Suitable for rapid deployment in critical AOG hydraulic systems

Practical Suggestions for Your Team (AOG Mindset)

• Stock ISO VG 46 grade for standardized hydraulic fleet support
• Maintain sealed containers to prevent moisture ingress
• Train technicians on compatibility checks before fluid conversion
• Keep SDS documentation accessible within maintenance control
• Implement fluid analysis scheduling to maximize oxidation life

Manufacture / Aviation Spec Codes

• Manufacturer: Quaker Houghton
• Product ID: QUINTOLUBRIC 888-46
• Fluid Classification: HFD-U Fire-Resistant Hydraulic Fluid
• ISO Viscosity Grade: ISO VG 46
• Reference Standard: OECD 301C, ASTM D92, ASTM D943 (mod.), DIN 51354-2

Alternative Names & Descriptions

• QUINTOLUBRIC 888-46 Fire-Resistant Hydraulic Fluid
• 888-46 HFD-U Synthetic Ester Hydraulic Oil
• ISO VG 46 Fire-Resistant Ester Hydraulic Fluid
• Quaker Houghton 888-46 Hydraulic Fluid
• HFD-U 46 Biodegradable Hydraulic Fluid