Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Mirror recoating
    From: Jim Hickey
    Date: 2019 Mar 27, 06:10 -0700

    I'm not suggesting you try this but thought it might be of interest to mention. I came across an old school method of resilvering a sextant mirror as follows:

    1. Remove old remnants of silvering
    2. Clean glass with xylene
    3. Take a piece of tin foil roughly the size of the glass
    4. Place a drop of mercury on the tin foil and rub it into the foil with "your finger" until it starts to form an amalgam and is tacky
    5. Place the foil tacky side onto the glass and smooth out.
    6. Apply a coat of lacquer to the foil, let it dry and you are done.

    I wonder if this method is anywhere close to how the original mirrors were made for you octant.


    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site