my birdbath leaks - help
Hi everyone, first off. I feel so lucky to have found this forum, and have been reading current and past postings all summer - it sure seems like a great bunch of folks here!
I am a pretty recent tufa/crete maker, but I've worked with paper mache for years. I always wanted to do outside pieces, and finally the lightbulb went off for me.
I've mostly been doing tufa, planters and such. I have done some carving too, and I will post some pics soon - I've been so busy making I haven't taken time for shooting photos.
Now my problem. I recently decided to try some birdbaths. First I made a tufa one - does not hold water at all. Ok, wrong mix. Then I did one using a mix of 1sand/2perlite/1portland. It holds water, but leaks through on one side. I searched for postings on sealing. I bought the TileLab matte sealer. Two coats did nothing for the tufa bath, ok. But 2 coats also did nothing for the lightweight crete one either, it still leaks just like before!! What am I doing wrong? Oh yeah, my crete mix also included some fibers and about 10% latex paint. I made another dish and base , same mix, which is curing now. Do I need to put a layer of straight portland/sand on the inside of the bowl to prevent leaking? I can't do that on the one I already put sealer on, but I could on the new one. I don't think it's going to hold water either, because I'm pouring water in it when I wrap it up for curing, and when I unwrap it the next day the water is gone. I am so sad and frustrated! Forgive my looong post and try and get this poor newbie on the right track.