Phillips 66® FR Fluid-Glycol is a water-glycol based fire-resistant HYDRAULIC FLUIDS developed for use in industrial hydraulic systems operating in areas subject to fire hazards. It contains sufficient water to snuff out a fire resulting from ignition of a fluid leak. It is suitable for use in hydraulic systems operating at 2,000 to 3,000 psi, and can withstand intermittent pressure spikes up to 5,000 psi.

You are currently viewing FR FLUID-GLYCOL

Features & Benefits

  • Fire-resistant for safety
  • Excellent wear protection for hydraulic pumps and motors
  • Excellent rust and corrosion protection
  • Good foam resistance
  • Glycol content protects against freezing
  • Compatible with other water-glycol fluids


  • Hydraulic systems on equipment operating in areas subject to fire hazards, such as:
  • Steel and aluminum mills
  • Molding and metal die casting machinery
  • Welding machines
  • Foundries
  • Furnace charging equipment
  • Open hearth and basic oxygen furnace (B.O.F.) equipment
  • Power transmission plants

Technical Details

  • ISO Grade: 32/46
  • Licenses & Approvals

    FR Fluid-Glycol meets the requirements of the following OEM specifications:

    #ISO HFC (fire-resistant water-glycol mixture, >35% water) #Denison Hydraulics HF-4 #U.S. Steel 171

    Additional Details

    ISO Grade 32/46
    Specific Gravity @ 60°F 1.08
    Density, lbs/gal @ 60°F 9
    Color, Visual Red
    Freezing Point, °C (°F) -55 (-48)
    cSt @ 40°C 39.3
    cSt @ 100°C 8.5
    SUS @ 100°F 198
    SUS @ 210°F 54.7
    Viscosity Index 202
    Four-Ball Wear, ASTM D4172, Scar Diameter, mm 0.48
    pH (neat) 9.7
    Rust Test, ASTM D665 A&B Pass
    Water, wt % 40
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