How do you resurface a ceramic sink?
How to Resurface a Porcelain Sink Clean the sink with trisodium phosphate, applied with a soft cloth. Attach medium-grit sandpaper to the clamps on a hand sander and thoroughly sand the entire surface of the sink, even the edges. Smooth out the surface with a fine-grit sandpaper. Evenly apply a thin coat of bonding agent with a cloth.