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Xabia Jim 03-31-2008 12:15 AM

Crack patching
I used to use waterglass to attach a new door gasket to my woodstove....just ran across this reference which might be of interest....

Perlite makes a useful rigid refractory and a mouldable refractory
patching/repair compound using sodium silicate (waterglass) as a binder,
....but it's soft and the bond develops slowly.

Xabia Jim 03-31-2008 11:01 PM

Re: Crack patching
Further thinking makes me wonder if using the gasket material might be good for filling a larger crack that bothered you. (like a smoke escaping crack)

This gasket does remain somewhat flexible to seal the woodstove door. The waterglass keeps it in place.

so this might be a crack filling solution with some flexibility....

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