I've heard tell of others using plastic bird baths as a mold, filling the entire thing with concrete and then having a concrete birdbath instead of plastic.

You may be able to use silicone to glue it back together...that won't hurt the birds. Some of our GJers have also mosaiced their birdbaths...you could do a search in the bar at the bottom of the page to see theirs.

I had a big crack in one once and we used epoxy on it. Just painted the epoxy over the crack. It worked !

Someone in last couple of months used a plastic birdbath for a concrete mold including the base so whole thing is concrete now. Think she used something in it-Vasoline or something so the concrete would release. Even looked like a great little table or plant holder. But it may have been on here or the forum "trash to treasure" Think it was posted as a birdbath. Jan

I had one that cracked. I put a gob of silicone on my index finger and pushed it into the crack.... it held water for years after that until a tree branch landed on it.

I just couldn't throw the base away just because the top was smashed so I have a base to play with. I was thinking the other day how it would be cool to drill holes in the sides of the base and grow annuals in it, like those hanging bags.... or maybe I could stick hens and chicks in there too.

My birdbath is 1/4" thick and made of some sort of heavy plastic. Years ago it developed similar cracking with part of it pushing down, possibly from freezing water. I push the parts back in-line and spread silicone based adhesive over the crack. This has only temporary success, 6-9 mos. I'm looking for a more permanent fix, perhaps trying epoxy next. Any other ideas? Anybody know what plastic bird baths are usually made of?

I know it would not be a birdbath but my cement one got a crack. I filled it with dirt. It made a delightful succulent planter. That might give you another option. Jlily

I used mine as a mold to make a concrete table. I filled the bowl with concrete to make the table top but you could probably cut the top open and put in concrete to make a bowl that would hold water.
Kathy
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I love that mold idea for a cracked birdbath...awesome, crete! Concrete should last a long time!
Jeanne S.

I think I am going to make my plastic cracked birdbath into a succulent pot and buy a new birdbath