QUINTOLUBRIC® 888 Series Frequently Asked Questions

1. What is a Fire Resistant Hydraulic Fluid (FRHF)?
   FRHF's are less flammable than mineral (petroleum) oil functional fluids and are approved by Factory Mutual Research. They will burn at the ignition source but will not propagate a flame back through a spray mist to the leak. They will self extinguish when the ignition source is removed.
    
2. What is a Polyol Ester?
   A polyol ester is a synthetic high temperature reaction product of an organic fatty acid with a polyhydric alcohol. It is oil soluble and is fortified with antioxidants, corrosion inhibitors, non-ferrous metal deactivators, EP lubricants and polymeric viscosity index improvers. It responds well to all performance testing with respect to oxidation and thermal breakdown resistance.
    
3. What is the recommended seal/hose liner when using polyolester FRHF's?
   Quaker Chemical's Fluid Power Group will always test elastomer compatibility when requested. We recommend medium to high (30% min.) nitrite rubber (Buna N®) or Viton®. Chlorinated polyethylene is good also. Avoid EPR and Butyl rubber - they are for phosphate ester.
    
4. Why don't you have to derate hydraulic equipment when running QUINTOLUBRIC 888? The Specific Gravity is 0.90 @ 20°C (60°F) very similar to hydraulic mineral oil. Couple this with an excellent viscosity index and the components can run at their rated capacity.
    
5. How would a petroleum based hydraulic system be converted to a QUINTOLUBRIC 888 Series product?
   Since both products are miscible, a drain-and-fill procedure is sufficient. Ninety-five percent efficiency must be obtained to ensure adequate fire resistance. Certainly drain reservoir, open endplates and clean out any residual mineral oil based fluid in the tank. Crack fittings and lines on any large components like cylinders, accumulators, filter housings and activators. Push fluid out any way possible. Recharge system; run for at least two shifts; then test for mineral oil content.
    
6. Why are QUINTOLUBRIC 888 Series FRHF's considered environmentally safe?
   There are no hazardous ingredients used to manufacture QUINTOLUBRIC 888 Series FRHF's. A synthetic ester formed from naturally occurring fatty oils is 95% biodegradable in 21 days using industry standard procedures. Since the product floats on water, any spills are easily skimmed off for disposal.
    
7. How is QUINTOLUBRIC 888 different from other polyol ester hydraulic fluids?
   QUINTOLUBRIC 888 is built on 30 years of experience with industry leading products. This new product is available worldwide with the identical formulation and high performance. Ordering or recommending QUINTOLUBRIC 888 means getting the exact same product worldwide.
    
8. What are the advantages of QUINTOLUBRIC 888 Series over phosphate ester fluid?
   • No Strong Acid or Phenols
   • Specific Gravity Less Than Water
   • Biodegradable
   • No Special Seals
   • Lower Cost
   • Reduced Smoke When Burning
   • No Derating of Equipment
      
9. What are the advantages of QUINTOLUBRIC 888 Series over any water containing fluid?
   • Superior Lubrication
   • Easier Waste Control
   • Lower Vapor Pressure (Reduced Reservoir Rust)
   • Inherent Fire Resistance
   • Lower Fluid Maintenance
   • Biodegradable
   • No Derating Equipment
      
10. What are the advantages of QUINTOLUBRIC 888 over polyalkylene glycol (PAG) based fluids?
    Quaker has evaluated PAG technology regularly over the last several years - most recently by testing a commercially available PAG product. In all cases our conclusion has been that the benefits of PAGs do not outweigh their disadvantages when compared to high quality polyol ester fluids such as QUINTOLUBRIC 888. PAGs are much more difficult to waste treat than polyol esters. The fire resistance of PAGs is also more sensitive to fluid aging than with polyol esters.