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Ground my floor tiles. Showing more pitting. How to grind / polish fire brick?

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  • UtahBeehiver
    replied
    Before you buy, I suggest you look at the MSDS on this. This is you oven floor you are talking about where pizzas will lay directly on it. In my brief reading on Sodium Silicate, it is very toxic in an uncured state.

    Leave a comment:


  • stevef22
    replied
    https://www.amazon.com/Eastchem-Sodi...8341613&sr=8-6

    Is this the right stuff, powder form? Thanks!

    Leave a comment:


  • stevef22
    replied
    Thanks very much for input. I never heard of Sodium Silicate - found this video here for all you newbs out there.

    https://youtu.be/IXQM8nheRv0?t=145

    Going to try on test brick. Will let you know!


    I was going to buy a belt sander, but even a fine 200 grit paper would probally leave brick looking pitted etc.

    Leave a comment:


  • david s
    replied
    i’d doubt very much if this brew would be effective over floor bricks, but give it a shot and report back.
    Last edited by david s; 05-01-2020, 03:56 PM.

    Leave a comment:


  • Petter
    replied
    Look at #3

    https://www.google.com/url?sa=t&sour...xmAHXyo_KWo69f

    I think you should try on a scrap brick first. Dilute Sodium silicate with water 1:4 and apply it thin in several coatings with until you're satisfyed.

    You can add equal amount of fire clay to concentrated SS to create a paste that could fill larger (still mm-range) gaps. Let it set and then heat it slowly to about 150 C to remove the last bound water. Then coat it like the rest of the hearth.

    Leave a comment:


  • Ground my floor tiles. Showing more pitting. How to grind / polish fire brick?

    Hi, My floor was uneven so I took a diamond grinding wheel to it. Floor is level now but firebrick looks more pitted, not smooth.

    Tried sanding brick a little and pits are still there.

    Did I permanently damage firebrick? Is there a method to smooth off firebrick?

    Thank you, Steve
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