Damper Slot Bricks

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Uploaded by on Dec 24, 2008

Here I'm mixing lag and castable on a spare kiln shelf to malk a bed for the large refractory block that will be part of the chamber and base of the stack above the exit flue.

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Uploader Comments (GindaUP)

  • What is "lag"?

  • Lag is the mix of 50lbs. Fireclay, 50lbs EPK Kaolin, and 10lbs. Kyanite/Mullite or fine grog I use to "mortar" the bricks. There is no cement involved because it can't take the heat, however the Alsey Hi-Cast I add to fill in odd shapes is a high temperature castable and I get the water for it from the lag which gives it some plasticity so I can move it around a bit. Castable is pretty chunky and stiff!

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