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Substitute for firebrick inside of SFB?

post #1 of 10
Thread Starter 
I am still in the planning stage but has anyone tried using a cement substitute in lieu of firebricks? I ask because at around $25 for a 6 pack I started looking around. This stuff is rated at 2200 degrees and is said to be useful for casting stone ovens as well.

http://www.amazon.com/gp/aw/d/B000H5T5EA/ref=mp_s_a_1_8?qid=1386458525&sr=8-8&pi=SL75
post #2 of 10
I'm sure it would work.... For a lighter, more insulative quality, you could mix zonolite or perelite with it.... would go further also... Warm and dry it slowly, very slowly.... A proper cure time and temp rise is days to weeks...

Dave
post #3 of 10
Thread Starter 
I'll have to look that up...I was thinking about making a mold out of wood and casting some firebricks out of that.
post #4 of 10
Quote:
Originally Posted by ShrekASTAC View Post

I'll have to look that up...I was thinking about making a mold out of wood and casting some firebricks out of that.

That's a plan.... take pics for us..... another opportunity to learn something... Dave
post #5 of 10
Thread Starter 
Will do
post #6 of 10

Just as an aside, Ace hardware has a 6 pack of firebrick for $20 if you've got one close to you. Still not cheap, but $5 is $5.

post #7 of 10
Thread Starter 
Yea I was looking at that too. I'm military so the 10% off is nice. The refractory cement I was looking at has 12.5lbs of it so additionally I am interested in making my own. I'll find the you tube link on how to make your own bricks and post it here.
post #8 of 10
Thread Starter 
post #9 of 10
Quote:
Originally Posted by DaveOmak View Post

I'm sure it would work.... For a lighter, more insulative quality, you could mix zonolite or perelite with it.... would go further also... Warm and dry it slowly, very slowly.... A proper cure time and temp rise is days to weeks...

Dave

Great advice here

 

Quote:
Originally Posted by DaveOmak View Post
 
Quote:
Originally Posted by ShrekASTAC View Post

I'll have to look that up...I was thinking about making a mold out of wood and casting some firebricks out of that.

That's a plan.... take pics for us..... another opportunity to learn something... Dave

Always looking for good new ways to do things.

 

If you can find a masonry supply business they are cheaper on firebrick then the box stores.   Here local I can buy firebrick for a dollar each.  Just a thought.

 

Let us know how it turns out.  Like Dave said.  Its critical that you let masonry cure before you put a big fire in it.  I can not stress that enough

post #10 of 10
Tractor supply
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