How to Repair Chips in Quartz Countertop

Quartz countertops are durable and long-lasting, but chips and cracks can still occur over time. Fortunately, there are several effective DIY methods to repair chips in quartz. With a little time and effort, you can restore the look of your quartz countertop without having to replace the entire surface.

What Causes Chips in Quartz Countertops?

There are a few common causes of chips and cracks in quartz:

  • Dropping heavy or sharp objects on the countertop – This can chip off small pieces of the quartz.
  • Impact from objects – Bumping appliances, cookware, etc. against the edge can cause chips.
  • Settling or movements in the cabinetry – This puts stress on the countertop that leads to cracks.
  • Heat damage – Exposing quartz to excessive heat can cause the resin to break down and crack.
  • Poor installation – Seams that aren’t properly supported or filled can crack over time.

Repairing Minor Chips

Small chips less than 1/4 inch wide can often be repaired with a quartz countertop repair kit. These kits contain coloring compounds and clear resins that blend into the surface. Here is the basic process:

Clean and Dry the Area

Use a non-abrasive cleaner and soft cloth to thoroughly clean the chip and surrounding countertop. Let the area dry completely so the repair resin adheres properly.

Sand the Chip

Lightly sand the chipped area using 600 grit sandpaper. This roughs up the surface so the repair resin bonds effectively.

Mix the Coloring Compound

Prepare the coloring compound according to kit directions to closely match the color of your quartz. Apply a small amount and check the color match before proceeding.

Fill the Chip with Resin

Fill the chipped area just above the surface with a small amount of resin using the applicator. Don’t overfill the chip.

Cure and Sand the Repair

Allow the resin to fully cure per the manufacturer’s directions, usually 24 hours. Once cured, use 600 grit sandpaper to smooth the repair flush with the surrounding quartz.

With this simple chip repair process, minor chips in quartz can be fixed to restore the appearance of the countertop. The repair will be virtually undetectable.

Repairing Larger Chips

For larger chips wider than 1/4 inch across, a more involved repair procedure is required:

Clean and Sand the Chip

Clean the area thoroughly and use 80 grit sandpaper to rough up the entire chip. This helps the repair material adhere.

Apply Coloring Compound

Work coloring compound into the chip to match the surrounding quartz color. Let dry completely.

Fill with Repair Resin

Mix quartz countertop repair resin well and fill the chip just above the surface. For deeper chips, apply in layers, allowing each to dry before adding more.

Cure and Sand Flat

Once fully cured, sand the repair flush using progressively finer grit sandpaper, up to 600 grit.

Polish the Area

Finally, polish the repair using a quartz polish and buffing pad. This blends the repair seamlessly with the surrounding countertop.

Though more complex, this process can make even large quartz chips look brand new again.

Repairing Quartz Countertop Seams

Cracks and gaps along the seams of quartz countertops also require repair to prevent damage. Here is an effective repair technique:

Clean and Dry the Seam

Clean the seam crack thoroughly using a non-abrasive cleaner and allow to dry fully.

Mix Coloring Compound

Prepare coloring compound to closely match the quartz. Fill any deep cracks first and allow to dry.

Fill Remaining Gaps

Mix seam repair resin well and fill along the length of the seam, just slightly above the surface.

Cure and Sand Smooth

Once cured, sand any protruding resin flush with the surrounding quartz using fine grit sandpaper.

Polish the Repaired Seam

Use a quartz polish and buffing pad to blend the repair into the countertop surface.

With the seam restored, the structural integrity of the countertop is maintained.

Preventing Future Chips and Cracks

To help avoid future chips and cracks in your quartz countertops:

  • Use cutting boards and hot pads when preparing food.
  • Clean spills promptly to prevent moisture damage.
  • Avoid bumping the edges of the countertop with appliances.
  • Have heavy objects installed over cabinetry rather than on the countertop.
  • Re-seal quartz annually with a penetrating sealer.

With proper care and maintenance, quartz countertops will stay chip and crack-free for many years before repairs become necessary. But when damage does occur, these DIY techniques can successfully restore the appearance of your quartz surface.

Frequently Asked Questions About Repairing Quartz Chips

Can I use automotive touch-up paint to repair chips in my quartz countertop?

No, automotive touch-up paints are not recommended for quartz repairs. They are opaque and won’t blend into the surface. Use a colored epoxy quartz repair resin specifically designed for stone surfaces.

What grit sandpaper should be used to smooth and blend quartz chip repairs?

Start with 60-80 grit to rough up the surface, then finish smoothing with progressively finer grits up to 600 grit. This results in an even, blended finish.

Is there a quick way to repair minor chips in my quartz counter?

For small chips less than 1/4 inch wide, a convenient chip repair kit provides everything needed. Just clean, color, fill, and sand to restore minor chips in about an hour.

Can any cracks or gaps in the seams of my quartz counters be repaired?

Yes, the full length of quartz seams can be repaired using a specially formulated seam repair resin and coloring compounds. Just thoroughly fill any cracks or gaps and blend smoothly.

How long will my DIY quartz chip and crack repairs last?

When properly done, most minor quartz repairs can last for many years with proper care. But extensive heat or direct impact damage may require a professional repair.


In summary, quartz countertops can develop minor chips, cracks, and seam gaps over time. But these common issues can be repaired using specialty colored resins and compounds. With some simple DIY techniques, you can successfully restore the appearance of damaged areas. Paying proper attention to preparation, color matching, filling, curing, and sanding results in repairs that are barely detectable. Your quartz countertops can look like new again after repairing chips, cracks, and seams.