#11  
Old 08-24-2011, 06:31 PM
Apprentice
 
Join Date: Sep 2010
Location: Easley, SC
Posts: 114
Default Re: FB Mortar

I'm needing mortar too!
So how much FB mortar fits in the USPS box?
The box is 12" x 12" x 5-1/2" (almost 1/2 cu. ft) and USPS charges $14.95 shipping in the US, no matter how much the box weighs. That could be almost 40# of portland cement, so I would hope at least 25 pounds of FB mortar.
Sounds pretty cost effective.
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  #12  
Old 08-24-2011, 08:29 PM
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Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,835
Default Re: FB Mortar

Quote:
Originally Posted by PizzaIdiot View Post
So how much FB mortar fits in the USPS box?
The box is 12" x 12" x 5-1/2"
I'm guessing around 1/2 bag.
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  #13  
Old 06-21-2013, 09:06 AM
Serf
 
Join Date: Jun 2013
Location: Canada
Posts: 5
Default Re: FB Mortar

How much Refmix do I need for a 42" oven? Will 50 lbs be enough?
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  #14  
Old 06-21-2013, 09:55 PM
Apprentice
 
Join Date: Sep 2010
Location: Easley, SC
Posts: 114
Default Re: FB Mortar

I used Heatstop 50. It comes in 50# bags and I used almost 4 bags for my 42".
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  #15  
Old 06-29-2013, 10:47 PM
Peasant
 
Join Date: Sep 2011
Location: blenheim
Posts: 31
Default Re: FB Mortar

I used ordinary mason's mortar, the ready mixed stuff. My thinking was that I did not want any mortar to show on the inside of the dome, as I was concerned it might spall off under high heat.
I took a lot of effort to make sure my joins were fairly good so the interior dome face was more or less all firebrick.
Ok, so on the outside I had some gaps to fill so I used a mix of mortar and pumice but used as many small pieces of brick as I could, and as little mortar as I could.
Seems to have worked fine for me.
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  #16  
Old 07-30-2013, 08:20 PM
Laborer
 
Join Date: Jul 2013
Location: tomball texas
Posts: 51
Default Re: FB Mortar

Hey Tony have fired your oven yet?
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