How to Repair Chips in a Faux Marble Sink

Faux marble sinks, also known as cultured marble, resemble real marble but at a fraction of the cost and weight. Manufacturers mold faux marble from resins, and crushed limestone or marble with dyes running through matching marble veins. Applying a clear, gel coat gives faux marble its shine and creates a waterproof, chip-resistant surface. Heavy items dropped on a faux marble sink can cause a chip that ruins the visual appeal and requires repair.

Nylon scrubbing sponge
White vinegar
Microfiber rag
Cotton swab
Denatured alcohol
320-grit sandpaper
Colored two-part epoxy repair putty
Toothpick
Plastic plate
Ice cream stick
Two-part epoxy paint
Artist's paintbrush
Clear epoxy

Instructions

- 1
  Scrubbing the faux marble sink with nylon scrubbing sponge and white vinegar removes soap buildup from the surface. Rinse the sink with clear water and then dry it with a microfiber rag.
- 2
  Dip a cotton swab in denatured alcohol and wipe the inside of the chip removing any remaining oils, dirt or soap scum.
- 3
  Sanding the chip’s edges with 320-grit sandpaper lightly roughens the faux marble surface.
- 4
  Match the sink’s base or background color with colored, two-part epoxy repair putty.
- 5
  Mix the epoxy powder and setting agent with a toothpick or other instrument on a disposable plastic plate, according to the manufacturer's directions.
- 6
  Scoop up repair putty with an ice cream stick and fill the chip. Press the colored putty into the chip. Swiping a clean edge of the stick over the repair pulls excess repair putty away from the surface. Let the epoxy putty set and harden for two to four hours.
- 7
  Match two-part epoxy paint made specifically for sinks and bathtubs to the color of the faux marble veins.
- 8
  Mix enough two-part epoxy paint for recreating the faux marble’s veins in a small, disposable plastic container.
- 9
  Dip an artist's paintbrush into the epoxy paint and follow the existing veining lines painting new lines over the repair. Let the epoxy paint dry overnight.
- 10
  Dip the artist's paintbrush into clear epoxy and paint it over the repair and one-quarter inch onto the unaffected section of the faux marble sink. Let the clear epoxy dry for eight to 10 hours before using the sink.

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