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    Re: Current Sextant Manufacturers
    From: Jean-Philippe Planas
    Date: 2012 Apr 2, 11:27 -0700
    I have been using a light pray of WD40 followed by a light spray of neutral oil (vaseline/petroleum gelly) inside the enclosed worm of my SNO-Ts for the last ten years and never noticed any noticeable decrease of accuracy or backlash of the instruments even when shooting lunars. 
    JPP


    From: OErjan <pokerbacken@gmail.com>
    To: NavList@fer3.com
    Sent: Monday, April 2, 2012 5:39 PM
    Subject: [NavList] Re: Current Sextant Manufacturers

    WD40 is considered corrosive in the instrument maker/watchrepair (I have
    3 years of schooling and have worked as such).
    I would keep it well away from my sextant or any other measuring
    instrument that has not been submerged in (salt)water.
    IF I was to use it it would be as "emergency fix" and not left on for
    more than few hours before completely picking instrument apart to clean
    and lubricate it properly using some kind of instrument oil and in some
    parts light grease.


    2012-04-02 16:41, Philip skrev:
    > That sounds a lot more like "3 In One". I have never experienced
    > varnishing with WD 40.
    > Philp
    >
    > On Mon, 2012-04-02 at 07:31 +0100, Geoffrey Kolbe wrote:
    >> Question: What is the difference between WD40 and varnish?
    >>
    >> Answer: Six months.
    >>
    >> Geoffrey Kolbe
    >>
    >> >Usually WD40 comes with a small-diameter red tube that can be
    >> >inserted into the hole in the spray nozzle for "pinpoint" application.
    >> >
    >> >A bit of trivia, "WD" stands for "water displacement."
    >> >
    >> >
    >>
    >>
    >>
    >>
    >>     
    >





       
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