Cracks in ceramic sink: Assess the situation and the sink
Porcelain sinks are both beautiful and easy to clean. On the down side, it’s a brittle material and easily cracked. One drop of a heavy object can leave you staring at a major chip in your porcelain.
If you have a cast iron porcelain overlay sink, you will probably see a black mark under the chip. Letting cast iron come into contact with water will cause it to rust, so don’t delay on this repair job!
If, on the other hand, you’ve chipped a piece off of a solid porcelain sink, and you still have the piece, a quick repair is possible with a clear epoxy glue. Here’s how to fix both types of chipped porcelain sinks.