How to Repair a Quartz Countertop Chip

Repairing a chip in a quartz countertop can seem daunting, but with the right materials and techniques, it is quite doable as a DIY project. Here is a step-by-step guide on how to repair quartz countertop chips and get your countertop looking great again.

What You’ll Need

  • Quartz countertop repair kit – Contains epoxy resin, hardener, applicator tools. Kits are available from hardware stores or online.
  • Sandpaper – Medium and fine grit, 120 and 220 grade.
  • Rags
  • Acetone or denatured alcohol – For cleaning the area.
  • Mixing container – For the epoxy resin and hardener.
  • Stir sticks – For mixing the epoxy.
  • Masking tape
  • Dust mask, gloves, and safety glasses

Prepping the Damaged Area

Before repairing the chip, you need to properly clean and prepare the area:

  • Clean the countertop around the damaged area with soapy water to remove any dirt or debris. Rinse and dry thoroughly.
  • Use acetone or denatured alcohol on a rag to remove any waxes or sealants from the chip and surrounding area.
  • OPTIONAL – Use masking tape around the chip if you want to contain the epoxy resin to a specific area.
  • Use 120-grit sandpaper to rough up the surface of the chip and remove any loose edges or shards. This helps the epoxy resin adhere better.
  • Clean and dry the area again after sanding.

Mixing and Applying the Epoxy Resin

  • Prepare your epoxy resin and hardener according to the kit instructions. Carefully measure out the resin and hardener in the specified ratios.
  • Thoroughly mix the resin and hardener together in your mixing container, scraping the sides as you stir. Mix for at least 3-5 minutes.
  • Apply the mixed epoxy resin directly into the chip with an applicator. Spread it around to fill the damaged area completely.
  • Make sure you push the epoxy resin deep into the chip to fill it in entirely. Apply enough so it is slightly mounded above the surrounding countertop.
  • Let the epoxy resin cure fully. This usually takes 6-12 hours. Avoid disturbing or touching it as it hardens.

Sanding and Finishing the Repair

  • Once fully cured, use 220-grit sandpaper to smooth and level the epoxy resin patch, making it flush with the rest of the countertop.
  • Carefully sand until the patch blends in seamlessly with the surrounding quartz.
  • Clean away all sanding dust. Use a polish or sealant if desired to restore sheen.
  • Your chip repair is now complete! The area should be durable, waterproof, and look as good as new.

Tips for Chip Repair Success

  • Make sure to prep the damaged area thoroughly so the epoxy resin bonds well.
  • Tape off the area around the chip for easier clean up.
  • Use an epoxy resin specifically designed for quartz and stone. General epoxies may not adhere as effectively.
  • Apply enough epoxy to overfill the chip slightly, allowing you to sand it flush.
  • Take your time sanding to get a perfect smooth finish. Use wet sanding if needed.
  • Match your polish or sealant to the existing countertop finish.
  • Chips on counter edges can be more tricky. Fill them in carefully.

With patience and care, those unsightly quartz countertop chips can be repaired to look seamless again. Just follow the process step-by-step. Pay close attention to fully filling the damaged spot and blending the edges. The results will bring your countertop back to its original beauty.

Frequently Asked Questions About Repairing Quartz Countertop Chips

Can I repair a quartz countertop chip myself?

Yes, repairing a chip in a quartz countertop is a DIY-friendly project. With the right materials and preparation, the average homeowner can complete the repair. Just follow the steps for cleaning, filling with epoxy resin, and sanding.

What is the best way to fill a chip in a quartz countertop?

An epoxy resin product designed specifically for quartz countertop repair works best. Make sure to thoroughly fill the damaged area, overfilling slightly. Once cured, sand flush for an invisible fix.

Should I use a quartz countertop repair kit or colored epoxy?

A specialized quartz repair kit is recommended because it contains epoxy engineered to bond well with quartz. Colored epoxy can be used but may not provide as durable of a fix. Match the color as closely as possible.

Can I use super glue to mend a broken corner on a quartz countertop?

No, super glue is not strong enough for quartz repairs. It likely will not bond well. Opt for a quality quartz epoxy resin instead, filling the damaged corner area completely.

Should I hire a countertop professional for quartz chip repair?

Only for very large chips, corner breaks, or multiple repairs. Most small chips and surface damage can be repaired successfully with a DIY quartz countertop chip repair kit. Proper prep and application are key.

How long does quartz countertop chip repair epoxy take to fully cure?

Most epoxy resins designed for quartz repair take 6-12 hours to fully cure. Avoid any water contact or abrasion during this time. Read manufacturer’s instructions for specific cure times.


Fixing a nick or chip in a quartz countertop gives it new life, while saving the cost and hassle of a countertop replacement. With a quality repair kit, some basic tools, and a little time and elbow grease, you can make chips and damage virtually disappear. Pay close attention to the surface preparation, epoxy application, and sanding steps for seamless results. With some care and patience, you can do quartz countertop chip repair successfully.