[TheForge] Firebrick

Thu Feb 6 19:51:21 2003

There are a couple options for making light firebrick, either pretty easy.

One way is to add sawdust to fireclay and ram them up in molds.

Another is to use perlite and fireclay and ram up in molds.

In either case add the water to the sawdust or perlite then mix in the
fireclay. Dry thoroughly and fire gradually.

The perlite mix is good to around 2,000f.

An additive that helps hold them together is portland cement. As I recall: 1
cement to 6-8 fireclay but I'm not sure, it's been a while.

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

----- Original Message -----
From: "Bruce Freeman" <[email protected]>
To: <[email protected]>
Sent: Thursday, February 06, 2003 8:50 AM
Subject: Re: [TheForge] Firebrick

It seems to me that insulating firebrick is diatomaceous earth + enough flux
to bind it together when it is fired.  Anyone know more about this?  I was
wondering if we might have a short-cut (or cheap-cut) here.

Bruce
NJ

>>> [email protected] 02/05/03 07:09PM >>>
If you want insulating firebrick, the construction grade won't do.  You
want the lighter ones that weigh 3 1/2 pounds, or less.  Try a ceramic
supply house.  They are used for building ceramic kilns.

Ken Zastrow
the copper heron forge

_______________________________________________
http://mailman.qth.net/mailman/listinfo/theforge
theforge mail list group photo site is
http://www.photoaccess.com
Login:  [email protected]
password:  anvil
___________