Bird-safe waterproofing for birdbath

debtro(z5 IL)June 12, 2010

I have two birdbaths that developed cracks and won't hold water anymore. Other than that, they're perfectly good so I want to waterproof them. I figured the same methods that fill holes in pots to make small watergardens would work to waterproof the cracks in the birdbath. I've found suggestions for both Bondo and silicone. But are these safe for birds? If water is sitting in the birdbath and birds are drinking? If not, any suggestions? We get lots of regular "customers" and I'd hate to inadvertently hurt them.

Thank you for reporting this comment. Undo
terrene(5b MA)

I have a concrete birdbath that is over 20 years old and has developed cracks too. A couple months ago I went to the hardware store and the manager recommended a caulk that is used in fish tanks. It is aquarium sealant, 100% silicone, and safe for fish. Haven't gotten around to repairing the bird bath yet, so I can't tell you how well it works!

Maybe I will do that in the next couple days, as it is supposed to be nice weather and it has to dry and cure for 48 hours.

    Bookmark   June 17, 2010 at 9:18PM
Thank you for reporting this comment. Undo

Once you waterproof the birdbath, can you clean it well?

    Bookmark   July 10, 2010 at 10:41PM
Thank you for reporting this comment. Undo
heathersgarden(6b/7a Mid TN)

After researching, the advice to use aquarium sealant seems safest. It doesn't contain any mold inhibitors that other silicon sealants have, and is very strong.

    Bookmark   August 5, 2011 at 11:15AM
Thank you for reporting this comment. Undo
terrene(5b MA)

Funny you should bump this. I finally got around to repairing that bird bath about a month ago! The aquarium sealant worked GREAT. I applied about 1/4 inch bead of sealant and smoothed it flat with my fingers, which was probably too much. I don't think very much at all would have been necessary to prevent leaking.

The only weird thing is that the sealant is slightly shinier and darker than the concrete, but you don't notice that when it's full of water.

Also, concrete bird baths are difficult to clean anyway. I use a stiff scrub brush. The sealant hasn't made any noticeable difference.

    Bookmark   August 11, 2011 at 3:40AM
Sign Up to comment
More Discussions
first post - bird food that sparrows dont eat?
Hi, This is my 1st post here! Can you guys recommend...
Birds wasting the milo in my bird feeders
I am new to feeding and attracting wild birds to my...
Squirrels are stealing my river rock
Over the past two weeks I have observed the squirrels...
Favorite Shrub or Tree for attracting Wildlife and Why
What have you planted in your back yard that attracts...
Mike Larkin
What is the name of this bush?
I saw this blooming bush in Shoreline Park in Mt. View,...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™