Restoring a fiberglass laundry sink typically involves cleaning the surface, filling in any cracks and chips, sanding, priming and painting.
To begin, scrub the sink with a mild detergent or baking soda using a soft sponge or cloth to remove any dirt and grime from the surface. Once it is clean, fill any cracks or chips with epoxy putty.
Allow the putty to dry completely before sanding it down. After sanding, use a degreasing cleaner and then rinse the sink thoroughly with water.
Apply a coat of primer to the sink before painting it with marine-grade paint for lasting protection. Let the paint dry and enjoy your newly restored fiberglass laundry sink!