I was trying to repair a cracked chiminea ( outdoor fireplace). I have "Quikkrete" quick-setting cement. I was wondering if this would be okay to use to patch and seal the cracks and hold against high temperatures when I have fires. Could someone please offer any advice on what type of pottery/clay sealing bondage product that is fire resistant, if I should not use this stuff and what maybe I should be using?? I'm not that knowledgeable with this kind of DIY home fix.
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A picture may help. FWIW, I’ve broken 2 chimeneas in the past, neither was repairable for fire purposes, one got glued and is now a planter the other one went to the dump.– TysonMay 24, 2018 at 11:05
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1Fire clay may be your best bet. It is designed for high heat and you may be able to make a patch that will hold.– Ed BealJan 30, 2019 at 20:09
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is fire clay ok for outdoors. Where temp change matters? More worried about outside in cold areas were frost may happen ?– user101687May 31, 2019 at 23:22
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2 Answers
No, Portland cement products do not tolerate much heat. Hardware type stores should have some products for use on flue pipes .
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I do think your wright ..But he has cement.– user101687May 31, 2019 at 23:24
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Looking at the input..Sounds like time to buy a new one..– user101687May 31, 2019 at 23:28
Of course mortar is heat resistant.
All the properties, cement, lime, sand, etc, are naturally heat resistant. However, mixing and applying the mortar can be enhanced by following a few extra steps. See link:
https://www.hunker.com/13401202/how-to-make-fireproof-mortar