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Unread 03-21-2013, 09:34 AM   #1
wa5ngp
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Default best way to glue on kamado top?

What is the best way to glue on the kamado top? I've got a king size of JB Weld that I could use OR I've got some refractory cement that I could use to cement this top part back in place.

1. All JB Weld
2. All refractory cement (closer to clay thermal expansion coeficient than JB)
3. small JB Weld bead covered by refractory cement. best or worst of both?

I also thought about cementing in some small steel wires like fishing leader or clothes hanger material to act like rebar. Maybe this is overdoing it.

See pix for problem I'm wanting to fix.

don
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File Type: jpg kamado_hole.jpg (54.8 KB, 136 views)
File Type: jpg top.jpg (28.7 KB, 135 views)
File Type: jpg together.JPG (17.5 KB, 135 views)
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Unread 03-21-2013, 10:10 AM   #2
swamprb
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I've never used anything labled refractory cement, only furnace cement, so I can't speak for its healing properties, but If I were restoring this pot, I'd just use JB Weld and try to run the cracks and fill them in with the epoxy as much as you can. So #1 is my vote.

The problem I had with your repair plan #3 was, I thought it would also be the best of both worlds repair until I painted a pot and it kept peeling off the areas covered with furnace cement. If you can get the refractory cement cured in a kiln it might work for you. IMO they are not worth the expense to try and get all worked up over.
Big money spent on repairing or replacing parts on a 40-50 year old Kamado would be a better investment just buying a new Big Green Egg, but a couple tubes of JB Weld and a few rattle cans of paint won't break the bank.
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Last edited by swamprb; 03-21-2013 at 11:35 AM..
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Unread 03-21-2013, 01:11 PM   #3
wa5ngp
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OK, I was concerned about the JB weld expanding at a different rate so it might come loose but maybe the temps are not big enough to make a difference. I have fixed lots of things with JB so I suspect that will do it.

I got this refractory cement in powder form. I may play with it just to see how it sets up. It did not cost much. The claim is that it withstands 2000 deg but if paint won't stick to it, that's not good.

This thing had been working fine with metal tape holding the top in place.
don
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Unread 06-15-2013, 06:38 PM   #4
mhd
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Default jb weld/refractory cement

hi could you tell me how your repair job is holding up. i'm trying to repair my firebox (3 pieces) and i thought i would try one of your ideas. i thought the one where you mixed the glue with the cement would work but just trying to get an idea. thank you.
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Unread 06-15-2013, 06:54 PM   #5
Woodmonkey
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Been there done that!

http://www.greeneggers.com/index.php...156764&catid=1
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