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For $1.50 you can buy "Mainstays" clear sillicone caulk at Wal*Mart. The stuff is awsome except for 2 things; When it gets all over your hands you cannot just wash it off, you have to wait until it dries THEN peel it off and you cannot paint it. I found a way around the painting part buy rubbing spackle all over it until it dried. It's a pretty good deal if you think about it.