Fixing broken globe on Primus 1001

Discussion in 'Fettling Forum' started by Kuman, Jan 11, 2021 at 10:14 PM.

  1. Kuman

    Kuman Sweden Subscriber

    Offline
    Joined:
    Sep 4, 2020
    Messages:
    42
    Location:
    Sweden
    My "blue hat" Primus 1001 came with broken glass globe.
    This globe is so hard to find that I use the broken one but every time I need to remove it I got scared it will disintegrate.
    Gluing with silicone or heat-resistant epoxy could be a solution but I wanted something which will look a bit more tidy. Something like a reflector on Radius.

    I tried copper tape. It is a thin copper strip with adhesive on one side. You can buy it in gardening shops - it's used to stop snails from eating strawberries or something like that.

    1.JPG
    The globe broke pretty unfortunately on wide area. One strip was not enough to cover it entirely, I used two.

    2.JPG

    Looks clean and tidy before lightning.

    3.JPG 4.JPG

    I expected the glue to burn, of course, but hoped to have enough rigidity in the copper to hold the assembly together. Here the glue starts "tarnishing":

    5.JPG

    Looking in IR-spectrum we see that temperature gradient is very steep. Of course.

    6.jpg

    Copper, however, dissipates heat very quickly:

    7.jpg 8.jpg 9.jpg

    After few hours of burning at full throttle my copper inlay looks "weathered":

    10.JPG

    Inside the globe:

    11.JPG

    Around 50% of glue is still intact at the bottom of the globe. That holds the copper strip in place. Copper rigidity keeps the upper part, now formed into co-centric radius with the globe, as if it was still glued.
    The whole assembly is still rigid and sound - no cracking in glass when I remove it from the lantern.

    I consider gluing 2 strips also on the inside, to contain the break-line. Here I will probably use heat-resistant epoxy paste.
    I'll wait with that a few days - so far these external strips are doing good job in keeping all together. Inside-strip would be just to hide this annoying break-line.

    I hope that helps you guys.
     
  2. Walkop Australia

    Offline
    Joined:
    Aug 28, 2020
    Messages:
    153
    Location:
    Bathurst, Australia
    Have a Austramax with a globe that has a similar crack from top to bottom. So far it has stayed in one piece and I handle the globe with care.

    Neat idea with the copper strip, may give it a try one day.
     
  3. ROBBO55

    ROBBO55 Subscriber

    Offline
    Joined:
    Oct 21, 2014
    Messages:
    2,181
    Location:
    Somersby, New South Wales, Australia
    It's a neat looking fix , Kuman . :thumbup:
    Let us know how it stands up to the heat long term.
     

Share This Page