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uk_exile 02-02-2011 11:20 AM

Asbestos in bricks ?
 
I saw a document mentioning kiln firebricks sometimes contain asbestos. I assume all firebricks made in last couple of decades won’t have asbestos but what about older firebricks. How commonly was asbestos used ? Sounds like making a WFO creates lots & lots of dust unless have a wet saw...which I won't as we don't have HF in NZ. Not keen on doing anything with asbestos.

C5dad 02-02-2011 11:48 AM

Re: Asbestos in bricks ?
 
Each manufacturuer has their own process - though all of the analytical that I have in my records for almost 100 years of bricks in the SW US indicate nothing. If you are concerned about some recycled bricks, take a chip off and send it to an asbestos lab for $10 to $15.

I do know some refractory muds did contain asbestos though

Tscarborough 02-02-2011 12:53 PM

Re: Asbestos in bricks ?
 
I also know of no bricks made using asbestos, although plenty of kiln insulation was either composed of or contained asbestos.

uk_exile 02-02-2011 03:41 PM

Re: Asbestos in bricks ?
 
I'll almost certainly be using new as chances of finding used is 0.001% but thought it was worth asking as it's very nasty stuff. I'm still waiting on Forno Bravo NZ to reply to my messages....perhaps they have gone.

Johnny the oven man 02-02-2011 04:41 PM

Re: Asbestos in bricks ?
 
Quote:

Originally Posted by Tscarborough (Post 107260)
I also know of no bricks made using asbestos, although plenty of kiln insulation was either composed of or contained asbestos.

CORRECT, no asbestos in firebricks. Asbestos was used in insulating situations.

C5dad 02-02-2011 06:26 PM

Re: Asbestos in bricks ?
 
However, there is silica which can cause "issues" according to OSHA and the state of California. Just take precautions with minimizing the dust, wearing a good dust mask (which is rated at P95 or better) and working with the bricks as wet as possible.


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