A non-water-soluable glue will hold it together; I think Liquid Nails is
non-water-soluable but check the labels of what's available. But when I
broke an oddly shaped terra cotta pot I liked, I put it back together with
a bead of silicon, then I painted the crack with gold paint to highlight
rather than try to hide the crack, & it looked cooler than before it got
-paghat the ratgirl
Get your Paghat the Ratgirl T-Shirt here:
You can buy a variety of multipurpose glues that are specificly rated for
ceramic-to-ceramic contact. Some of them are not fun to breathe when
curing (meaning coughing up a lung not fun, not just ew stinky not fun).
Liquid Nails (TM) makes a line of glues (www.perfectglue.com to select
the appropriate product). I don't know if paghat was thinking of that
or their construction adhesive.
You could also probably put a fiberglass patch on/under it. You may need
additional glue if the fiberglass epoxy doesn't stick.
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