Caulk for Chimney Crown

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Fivehorizons88

Fivehorizons88

Member
Hearth Supporter
Aug 20, 2014
128
Eden, NY
What kind of caulk should I use on the chimney crown around the terracotta flue? Needs to be flexible so it can expand, right?

thanks!
 
Concrete crack sealant works good. It's stays plyable.
 
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