How to Fix Burnt Quartz Countertop

Quartz countertops are popular in kitchens and bathrooms due to their durability, ease of maintenance, and stylish appearance. However, like any countertop material, quartz can become damaged over time, especially if subjected to excessive heat. Burn marks on quartz countertops are unsightly but often repairable. This guide will walk you through the process of fixing burnt quartz countertops and restoring their original beauty.

Assessing the Damage

The first step is to assess the extent of the damage. Small, superficial burns may only affect the surface resin layer, while deeper burns can penetrate down to the quartz aggregate.

Identify Location and Size

Carefully examine the burnt area and note its location and dimensions. Measure the length and width of the burn mark. This will help determine the tools and materials needed for repair.

Determine Burn Depth

Try scraping the affected area gently with your fingernail or a plastic utensil. If the burn is only surface-level, the resin coating will scrape away to reveal the quartz underneath. Deep burns will not scrape away easily.

Clean and Dry the Area

Use a soft cloth and warm, soapy water to clean the burnt section. This removes debris and allows you to see the full extent of the damage. Thoroughly dry the area after cleaning.

Check for Cracks

Inspect the burn mark closely for any cracks extending into the surrounding countertop. Even minor fractures can worsen over time. Deep cracks may require professional repair.

Removing Damage

The next step is to remove the burnt resin coating and any affected quartz. This prepares the countertop for resurfacing.

Sand the Surface

Use 120-150 grit sandpaper to gently smooth away the damaged resin coating. Apply even pressure and sand in a circular motion. Take care not to remove too much material.

Employ More Aggressive Methods for Stubborn Burns

For deeper burns that sanding alone cannot remove, try scraping with a plastic putty knife or gently chiseling with a specialty quartz bit. Wear eye protection and work slowly to avoid damaging the surrounding area.

Clean and Dry Again

Remove all sanding and chiseling debris with soapy water. Dry thoroughly with a clean, soft cloth. The countertop must be completely clean and dry for resurfacing.

Resurfacing the Damaged Area

Once damaged material is removed, the burn mark can be filled, smoothed, and polished to match the original quartz finish.

Select a Resurfacing Product

Specialized quartz repair kits contain resin fillers, color-matched to the original material. Spread stone epoxy also works for small repairs. Choose a product designed for durability and heat resistance.

Prepare the Damaged Section

Lightly roughen the damaged area using 180 grit sandpaper. This helps the filler adhere properly. Remove all dust with a dry cloth. Apply painter’s tape around the repair area to protect the surrounding countertop.

Mix and Apply Resin Filler

Prepare the resin filler according to the manufacturer’s directions. Spread a thin layer over the burn mark, slightly overfilling the area. Use a plastic spreader or putty knife to smooth the filler flush with the surrounding quartz.

Allow Time to Cure

Leave the resin to dry and cure fully before polishing and using the countertop. This usually takes 24-48 hours. Avoid getting the area wet during the curing period.

Sand and Polish

Once cured, lightly sand the filled area to blend with the original quartz finish. Start with 220 grit sandpaper, then use progressively finer 400 and 600 grit. Finally, polish with a quartz polishing compound.

Clean and Seal

Remove all sanding dust and polishing residue with soapy water. Apply a penetrating quartz sealer to protect the repair and give the entire countertop a uniform luster. Buff with a soft cloth.

Preventing Future Burn Damage

With the burnt area repaired, take steps to prevent new burns and protect your investment.

Use Heat Pads and Trivets

Always set hot pans, baking dishes, and other hot items on trivets or hot pads. Never directly on the quartz surface. Silicone heat pads are flexible and withstand high temperatures.

Avoid Excessive Heat

Do not expose quartz countertops to extreme heat from appliances like electric griddles, slow cookers, or roasting pans. This can damage the solid surfacing material.

Clean Spills Promptly

Rinse away food, liquids, oils, and other spills quickly to prevent the heat from damaging the countertop. Hot oils especially can burn and stain if left to sit.

Apply a Sealer Regularly

Reapply a penetrating quartz sealer every 6-12 months. Sealers enhance stain and heat resistance.

Get Repairs Done Promptly

Don’t delay in fixing any chips, cracks, or burns that occur. Minor damage is much easier to repair when treated quickly.

FAQs About Fixing Burnt Quartz Countertops

How can you tell if a burn mark is superficial or deep?

Superficial burns only affect the surface resin and can be sanded away easily. Deep burns penetrate into the quartz layer and are more difficult to sand out. Scrape the area with a fingernail – if quartz is exposed, the burn is likely superficial.

What tools are best for removing burnt resin?

For minor surface burns, 120-150 grit sandpaper is often sufficient. For deeper damage, use a plastic putty knife or specialty quartz bit to carefully chisel away affected material. Take care not to damage the surrounding area.

Should you use a household quartz repair kit or a specialty product?

Specialty quartz repair kits are preferred because they contain durable, heat-resistant resin designed specifically for solid surfaces. Household epoxy putties may not withstand high temperatures. Always check that the product is approved for use on quartz.

How long does quartz resin filler need to cure before sanding and polishing?

Most quartz repair resins require 24-48 hours of cure time before the repaired area can be sanded smooth and polished. It’s crucial to allow proper curing so the filler hardens completely. Wet sanding or polishing too soon can damage the repair.

Will the repaired area always be visible?

With a skilled application of resin filler and meticulous sanding/polishing, most minor burns can be repaired almost invisibly. However, extensive deep burns may still leave visible marks depending on the original damage. The repair may not perfectly match the surrounding quartz.

Should you completely replace a severely burnt quartz countertop?

Total replacement is only necessary if the burn damage is extremely severe. Most burn marks, even deep ones, can be repaired successfully. Total replacement is expensive and usually reserved for cases where the entire surface is damaged extensively.

How can you prevent burns from hot pots and pans?

Always use trivets, hot pads, or silicone mats under hot cookware. Never place extremely hot items directly on quartz. Take care when cooking at high temperatures – consider using a splatter screen for protection from oil spatters. Promptly wipe any spills.


While burnt quartz countertops are an eyesore, in most cases the damage can be repaired by an experienced DIYer. Assess the severity of the burn, sand away affected material, fill with a specialized quartz resin, and blend the repair area. With proper sanding and polishing, the countertop can look as good as new. Taking steps to prevent excessive heat exposure will help avoid future burns. With some patience and effort, burnt quartz countertops can regain their original beauty and function.