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Amount of fireclay for a 42" oven

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  • UtahBeehiver
    replied
    IMHO is what you need, it should be Lincoln 60, it is similar to ball clay, adds plasticity with min shrinkage.

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  • Myckls
    replied
    I called back about the clay. It's "Lincoln fire clay" in powdered form. I must have misunderstood the sizing when I originally called, 10lbs is the minimum, 50lbs is cheaper per lb and anything over 200lbs is a bigger discount. I've tried a few different brick yards/masonry suppliers and can't find clay. Does this sound like the fire clay that will work in the homebrew?

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  • david s
    replied
    Be careful because to a potter fire clay is a different product to that of a mason. For masonry fire clay is the cheapest clay available to make mortar more workable. To s potter fire clay is a clay that will withstand extremely high temperatures (1260+ C) Do not get clay in a plastic state, it must be powdered. Probably better to ask the potter for Ball Clay.

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  • Myckls
    replied
    When I called the pottery place, I only asked if they sold fire clay and what the price was. I'll have to call them back when they're open to get some additional details.

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  • Gulf
    replied
    Dry powdered fire clay or wet sculpting clay? The 10 and 200 lb. weights sound a little “off” to me.
    Last edited by Gulf; 10-09-2021, 05:27 PM.

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  • Myckls
    replied
    It's going to be brick. The fire clay is sold in 10, 50 or 200lbs so it sound like a 50 and a couple spare 10's should be enough.

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  • CoastalPizza
    replied
    I used about 3/4th of a 50 lb. bag in my 32" cast oven. Is yours going to be cast or brick?

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  • UtahBeehiver
    replied
    I used a bag and a half (50#) on a 42". It is relatively cheap so with a two hour drive I would add contingency.

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  • Myckls
    replied
    Thanks. The closest clay I've found is a 2 hour drive away so I want to make sure I get enough.

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  • mongota
    replied
    I bought one 50lb bag. Did not use the whole bag.
    The sides of my brick were tapered so my mortar joints were somewhat tight, meaning less mortar required.
    Last edited by mongota; 10-08-2021, 04:49 AM.

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  • Myckls
    started a topic Amount of fireclay for a 42" oven

    Amount of fireclay for a 42" oven

    Does anyone have a rough idea of how much fireclay they used in their homebrew to build a 42" oven?
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