Cooling Finding Fluorinert (aka PF-5080 aka FC-77)

Discussion in 'Hardware' started by airchie, 4 Feb 2006.

  1. airchie

    airchie What's a Dremel?

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    Hi folks,

    I'm looking to play about with some ideas I have for submersion cooling etc.
    What I want to use is fluorinert but I can't find anywhere in the UK who supplies it.
    I notice nexxo is using it in his rig and wondered if he, or anyone else here, could point me in the direction of somewhere to get it?

    Thanks in advance for any replies... :)
     
    airchie, 4 Feb 2006
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  2. Nexxo

    Nexxo * Prefab Sprout – The King of Rock 'n' Roll

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    Nexxo, 4 Feb 2006
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  3. airchie

    airchie What's a Dremel?

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    Thanks nexxo, you're a star.

    What's the difference between FC-77 and the PF-5070 you linked to and the PF-5080 you use?

    I'm guessing just the boiling and pour points and other than that they're pretty much the same?
    Oh, and the cost obviously! :D

    Do they all have roughly the same dielectric strength?

    Lastly, is it safe to submerge a PSU in this PF5070?

    Sorry to be bombarding you with questions but I'm far from being a chemist and don't know what I'm looking at when I'm researching this stuff online... :(

    TIA :)
     
    airchie, 5 Feb 2006
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  4. Nexxo

    Nexxo * Prefab Sprout – The King of Rock 'n' Roll

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    A useful reference is this:

    https://secure.serverroom.co.uk/ucommerce/shops/acota/shopdata/files/1405-200.pdf

    Look at one with a high thermal conductivity and low viscosity. I'd say FC-77 or FC-75 would do nicely as a replacement for PF-5080. Acota sells almost the whole range of Fluorinert.

    And yes, you can dunk your PSU in Fluorinert safely (--but only in Fluorinert. The trick doesn't work with FluidXP or MCT-5).

    Keep in mind that Fluorinert can only be used in a closed system, as otherwise it evaporates like crazy.
     
    Nexxo, 5 Feb 2006
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  5. stev

    stev What's a Dremel?

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    Also, download the MSDS sheet and follow the safety requirements for this stuff. You don't need your neighbors or family to see the 6pm news of some guy passed out or critically ill from breathing the stuff in.
     
    stev, 6 Feb 2006
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  6. Nexxo

    Nexxo * Prefab Sprout – The King of Rock 'n' Roll

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    It's not that critical, as I can tell you from personal experience. Fill up the res in a well-ventilated area and don't smoke while doing so (the fumes are not toxic in themselves, but exposure to heat can change that). And of course don't leave the bottle or reservoir open when you're done.
     
    Nexxo, 6 Feb 2006
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  7. customh

    customh conflagration.

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    Ill never know its nexxo now, his av is different.....
     
    customh, 7 Feb 2006
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  8. Karel een

    Karel een What's a Dremel?

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    Fluorinert source

    You can get the FC-77, PF-5080 type fluids from a reclaimer in the US at a much lower price than normal. Their website is www.tmcindustries.com
     
    Karel een, 14 Feb 2006
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  9. Nexxo

    Nexxo * Prefab Sprout – The King of Rock 'n' Roll

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    Nexxo, 14 Feb 2006
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  10. bizoth

    bizoth What's a Dremel?

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    perfluorinated liquid immiscible with cyclohexane

    Dear well read FC specialist ,
    I'm prospecting for a perfluorinated (likely) solvent that would not mix with cyclohexane and yet could co-lyophilize with the latter or water : i.e. have MP BP close to 0 & 100°C.
    Would you have a suggestion ?

    Best regards from Brittany.
    Hervé
     
    bizoth, 14 Sep 2009
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