A. Scherwin
: My bathroom sink has a crack/indentation in the middle near the drain. I believe it is porcelan or ceramic in nature.: Without replacing it for now, can I plug up the crack with some type of corking/epoxy that will not disappear immediately from the water and that will seal the crack for now.go to your local automotive store and get a can of fiberglass repair kit. if the crack is all the way through the sink, apply it to the bottom and the inside. works great on boats…
