What product to use to seal around block off plate? (pics inside!)

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by Ansky, May 10, 2013.

  1. Ansky

    Ansky
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    I pulled my surround off to check the status of my block off plate and a lot of the sealant I used has cracked and crumbled off. I used both Fire Block and Funrnace Cement, and both cracked. I was thinking about using that Hi Temp silicone Gasket maker, but I wanted to check with you guys first. I thought that might be better because it is more pliable. What do you guys think?

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  2. mellow

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    Stuff Roxul on top of the block off plate and around the liner as it goes through the block off plate.
     
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  3. Ansky

    Ansky
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    Yes, I have lots of Roxul above the block off plate...Stuffed up as high as i could reach. I'm more concerned with what type of sealant to use where the block off plate meets the brick and the liner. And where the liner meets the stove.
     
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  4. mellow

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    I use mill-pac. My only issue is I have to reapply it after I clean my liner, the vibration makes it crack and fall off just like you show in your picture.
     
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  5. begreen

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    How large a gap are you sealing? If under 1/2" try mil pac sealant?
     
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