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Viscocity of glycerine is high than that of oil then why it cant be used in hydraulic

  1. Jan 29, 2013 #1
    Viscocity of glycerine is high than that of oil then why it cant be used in hydraulic brakes..???
     
  2. jcsd
  3. Jan 29, 2013 #2
    Re: Viscocity of glycerine is high than that of oil then why it cant be used in hydra

    I'm sure there are many more requirements than viscosity. Lubricity, bulk modulus, and boiling point are the first things that pop into mind.
     
  4. Jan 29, 2013 #3

    SteamKing

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    Re: Viscocity of glycerine is high than that of oil then why it cant be used in hydra

    The hydraulics in a brake system only need to transmit and multiply the input force applied at the brake pedal. In addition, the fluid needs to withstand high and low temperatures (not freeze or boil), not corrode the brakes, brake lines, or any soft components of the system, not absorb water, etc. Having a high viscosity doesn't necessarily indicate a superior brake fluid, and would probably be unusable in cold temperatures.
     
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