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Can I seal the Exterior of my oven? - Forno Bravo Forum: The Wood-Fired Oven Community

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I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

Ask Me Anything New Forum Feature

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Can I seal the Exterior of my oven?

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  • Can I seal the Exterior of my oven?

    Hi guys,

    I've built an oven myself from scatch using a relatively cheap method, which in short has a clay shell, with other layers of insulation over the top. I avoided the brick ovens because i didnt think i would be able to do the block work,

    anyway...

    my question is based on the finish coat of my oven which is a thin brushed on layer of sieved sand, cement and clay, with a little oxide for colour. I have since found out that this layer is not weather proof. when it rains, it seems to slowly wash off this thin layer.

    can i use a comercial type sealer to possibly fix this problem? can you think of any problems that this may cause on my oven. ie chemicals near food??? is this a a big no no.

    I hope you can help me

    kind regards to all

  • #2
    Re: Can I seal the Exterior of my oven?

    I suggest that you just cover it with an acrylic stucco - thats the route I went. The stuff is bullet proof.

    Les...
    Check out my pictures here:
    http://www.fornobravo.com/forum/f8/les-build-4207.html

    If at first you don't succeed... Skydiving isn't for you.

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    • #3
      Re: Can I seal the Exterior of my oven?

      I'm using an acrylic stucco called, "Multitex". Like Les says, it's bulletproof!
      It can be tinted to a suitable colour or it can be painted over with something like Dulux Tuscan or Solaguard Stone Finish.
      I'm also in Oz, so I know you'll be able to get the products.
      Last edited by Balthazar; 10-20-2008, 03:15 AM.

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      • #4
        Re: Can I seal the Exterior of my oven?

        Try what they call flexible pointing. It is a flexible acrylic that will withstand the expansion created from the heat. It is hard to apply but I found it easier to thin it down with water and apply it like a thick paint, about three coats to give you about 3-4 mm total thickness. The stuff is designed for sealing terracotta or concrete ridge caps and is a standard roof tilers item. Wait until your oven is toally dry (say 5 cooking firings after your curing fires) You don't want to lock in the moisture.
        Kindled with zeal and fired with passion.

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