[Superman]

I've got one of those HUGE, deep, wide, two-section concrete sinks in my garage that I moved up from the basement. Apparently, the nitwits who actually moved this Goliath managed to get a crack or two in it. It leaks. I can see the cracks. They are not gaping cracks, but rather are hairline things that leak. The thickness of these sink walls is prolly between 3/4" and 1".

I was thinking of using silicon caulk to try to seal these cracks, but a friend said she had some goop for this purpose. She offered me two small cans of powdery stuff......cementacious stuff, that appears to be for this purpose. Anybody have any experience mixing up this cement stuff and using it to patch cracks in concrete so they don't leak?

I figure it might be worth a try. Heck.......if the sink still leaks, I could always just coat the darned thing with epoxy.