Re: My Cast Refractory Oven Build
An acrylic flexible product will fill those cracks in the outer shell. Don't worry too much about them the outer shell is only to hold everything together and to keep the weather out. A big part of your outer shell cracking problem is caused by the direct joining of the inner and outer shells. This is evidenced by the cracks in the outer shell where it joins at the corners of your arch, one is hot and expanding while the other is much cooler. You will probably have to live with the cracks in that position.
An acrylic flexible product will fill those cracks in the outer shell. Don't worry too much about them the outer shell is only to hold everything together and to keep the weather out. A big part of your outer shell cracking problem is caused by the direct joining of the inner and outer shells. This is evidenced by the cracks in the outer shell where it joins at the corners of your arch, one is hot and expanding while the other is much cooler. You will probably have to live with the cracks in that position.
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