How to Repair a Chip in Quartz Countertops

Assessing the Damage

Inspect the chip or crack carefully. Small chips less than 1/4 inch wide can often be repaired easily, but larger cracks may require replacing the entire countertop.

  • Use a ruler to measure the length and width of the damaged area.
  • Check if the chip extends deep into the countertop by running your finger over it gently. Shallow chips are better candidates for repair.
  • Determine if the chip exposes any of the quartz aggregate underneath the glossy top layer. This will impact the repair technique.

Gathering the Right Supplies

You’ll need a few specialty repair products and tools:

  • Clear epoxy adhesive specifically formulated for quartz repairs
  • Color-matched resin to fill the chip
  • Mixing sticks for the epoxy
  • A plastic putty knife or spreader
  • Sandpaper (150 and 220 grit)
  • Microfiber cloths
  • Tape (painters or masking)
  • Isopropyl alcohol
  • Damp rag

Tip: Take a small piece of the quartz to a home improvement store. They can help you find the closest color match for the resin.

Preparing the Damaged Area

Proper surface preparation is crucial for a seamless, long-lasting repair:

  • Clean the area thoroughly with isopropyl alcohol to remove debris and oils.
  • Use painter’s tape to mask off the area around the chip. This keeps excess resin contained.
  • If the chip is large, taper the edges by lightly sanding to help the resin blend better.
  • Blow away dust using compressed air or a dry cloth.

Mixing and Applying the Epoxy

Follow all directions when mixing the epoxy adhesive to avoid curing problems:

  • Combine the resin and hardener as directed by the manufacturer.
  • Stir thoroughly until fully blended with no streaks.
  • Apply a thin layer of epoxy into the bottom of the chip using a spreader or putty knife.
  • Fill about 3/4 full with the color-matched quartz resin. Overfill slightly.
  • optional: Add a layer of decorative metal, glass or stone fragments into the resin for a creative touch. Let set 15 minutes.
  • Place tape over the repair to pull excess resin off and create a smooth, level surface.
  • Allow to cure fully per epoxy instructions, usually 24 hours.

Finishing Touches

Once cured, a bit more work makes the repair blend invisibly:

  • Remove tape and sand the filled area smooth with 150 grit sandpaper.
  • Clean away resin dust.
  • Use 220 grit sandpaper to polish the edges of the repair for a flush finish.
  • Clean countertop with isopropyl alcohol and a clean cloth.
  • Buff surrounding area gently with a microfiber cloth to restore shine.

With careful prep and the right materials, chip repairs can be virtually undetectable. But if the damage is extensive, replacing the quartz countertop may be required. For small chips up to 1/4 inch, these repair steps let you fix the blemish and restore the beauty of your quartz surface.

Frequently Asked Questions About Repairing Quartz Chips

How long does quartz chip repair take?

The entire repair process takes about 24-48 hours. Applying and curing the epoxy adhesive takes 24 hours. Sanding and polishing add 1-2 more hours. The quartz repair lasts for many years when properly done.

Can I use automotive paint or nail polish to fix a chip?

No, household products like paint or nail polish do not have the right adhesive qualities for a lasting quartz repair. They may peel or discolor over time. Use a quartz-specific epoxy.

What color resin should I use?

Have your countertop supplier or home improvement store help match the resin color. Bring in a chip sample for the most accurate match. Different quartz finishes require different colored resins.

How do I smooth uneven chip repairs?

If the filled area is a bit uneven after curing, sand it flush with 150 grit sandpaper. Then polish with 220 grit. The epoxy can be sanded once fully set for about 24 hours.

Should I seal the repair?

Sealing is not necessary. The epoxy resin forms a permanent bond that resists moisture. Apply a quartz sealer or wax to the entire countertop to renew shine. Avoid sealants on just the repair.


Repairing chips or cracks in quartz countertops restores their appearance while avoiding replacement costs. With specialty adhesive, resin, and the proper technique, the damaged area can be restored almost invisibly. Pay attention to properly cleaning the area, choosing the right colored resin, and taking time to smooth and polish the repair. With some patience and the right materials, quartz chips and cracks can be fixed successfully.