How to Repair Scratch in Quartz Countertop

Quartz countertops are popular options for kitchen and bathroom remodeling projects because of their durability, low maintenance, and stylish appearance. However, like any solid surface material, quartz can become scratched and damaged over time. Small scratches are inevitable but fortunately, there are methods to repair and restore the flawless finish of your quartz countertops. This guide will provide tips on how to repair minor scratches and damage on quartz surfaces.

What Causes Scratches on Quartz?

Quartz is resistant to scratches and etching compared to other natural stone countertop materials. However, it is not completely scratch-proof. Here are some common causes of scratches and surface damage on quartz countertops:

  • Sharp objects like knives, keys, and tools scraping across the surface
  • Pots, pans, and dishes, especially the bottom edges, sliding on the countertop
  • Sand, dirt, and grit acting as abrasives when surfaces are dragged across
  • Cleaning with abrasive pads, brushes, or powders
  • Leaving spills to sit and dry on the countertop

Though quartz is hard, constant exposure to scraping, sliding, and abrasive particles can eventually take a toll on the surface finish. The good news is that most scratches on quartz are superficial and only affect the top layer of resin coating. With the right techniques, these scratches can be minimized to restore the quartz to like-new condition.

Cleaning vs. Repairing Scratches

Before repairing scratches, first try cleaning the area with a soft cloth, mild soap and water. Gently scrub the scratch and rinse thoroughly. This simple cleaning may remove very fine surface scratches by clearing away debris that may be caught in the damaged area.

If cleaning does not remove or reduce the visibility of the scratches, then move on to the repair processes below. Keep in mind that proper routine cleaning is key to preventing buildup of abrasive dirt that can worsen and expand scratches over time.

How to Repair Minor Scratches

Sanding and Polishing

For light surface scratches, use a very fine grit sanding sponge to gently smooth and level the scratched area. Make sure the sponge is designed for use on quartz and does not contain any harsh abrasives. Gently sand in a circular motion, frequently checking progress to avoid over-sanding.

Follow sanding by polishing the sanded area with a soft cloth and quartz polish or mineral oil. The combination of gentle sanding to blend edges followed by polishing returns the quartz surface to a uniform matte finish.

Finishing pads

Specialized quartz finishing pads can help resurface and repair minor scratches and damage. These pads have micro-abrasives that level out the scratch without grinding away the surrounding surface. Rub the pad over scratches using firm pressure and circular motions. Avoid applying too much pressure to prevent widening the scratch.

Finish by wiping the area clean and applying quartz polish. The scratch should be significantly less noticeable after refinishing with pads. This works well for light scratches but may not fully remove deeper marks.

Scratch fillers

For more stubborn surface scratches that persist after sanding and polishing methods, use a scratch filler formulated for quartz countertops. These fillers come in varieties of putty sticks, hypodermic needles, or repair kits.

  • Start by cleaning out any debris in the scratch groove using a toothpick or needletip.
  • Squeeze or inject the filler directly into the scratch, overfilling slightly.
  • Use a plastic card or putty knife to scrape off excess, leaving the filler level with the surrounding quartz.
  • Buff with a soft cloth or microfiber pad to blend the edges.
  • Finally, polish the countertop as usual to restore luster.

The filler creates an even, uniform appearance by filling in the groove and blending flush with the countertop. It forms a permanent yet flexible bond that moves with the natural expansion and contraction of the quartz.

Tips for Repairing Scratches

  • Always start with the gentlest method first, such as cleaning or sanding, before trying more intensive scratch fillers.
  • Carefully follow product instructions since techniques can vary by filler brand.
  • When sanding, maintain a light touch to avoid digging into good surface around the scratch.
  • Work in small sections for best control and recheck smoothing frequently.
  • After filling a scratch, wipe the area frequently as product instructions direct to remove excess before drying.
  • If a white haze appears after filling, rewet a cloth with product and gently wipe area to remove it before curing.
  • When possible, test products and methods in inconspicuous areas first to ensure suitability with your specific quartz material and scratch.
  • Wider or deeper scratches may require help from a professional quartz fabricator or installer for best results.

Preventing Scratches on Quartz

While quartz stands up to daily wear better than most surfaces, taking some basic precautions will keep your countertops in tip-top shape:

  • Use cutting boards, trivets and hot pads when preparing food to protect from knife marks and hot pans.
  • Clean spills promptly with a soft sponge and mild soap and water to avoid staining and etching.
  • Sweep counters often to remove abrasive particles like dirt and sand.
  • Avoid using cleansers containing acids, ammonia or bleach. Stick to specially formulated quartz cleaners.
  • Prevent objects with rough bottoms like unglazed ceramics from rubbing on the surface.
  • Apply a quartz sealer every 1-2 years for added scratch resistance.
  • Don’t press down hard when scrubbing the counters during cleaning.

With proper care and the right techniques, you can keep your quartz counters smooth and scratch-free for many years of beauty and enjoyment. Learning how to repair an occasional scratch keeps your counters looking pristine in between professional deep cleaning or resealing services. For significant damage beyond DIY methods, consult a professional stone restoration company to determine the best solution. With some patience and effort, even noticeable scratches and marks on quartz can disappear.

Frequently Asked Questions About Repairing Scratches in Quartz

Can all scratches be repaired on quartz countertops?

Most minor surface scratches can be minimized through sanding, polishing and using filler products designed for quartz. However, deep scratches may permanently damage the surface. If the scratch catches on your fingernail, it is likely too severe for DIY repair methods. Consult a professional fabricator or restorer.

What are the best filler products for repairing quartz scratches?

Look for filler products specifically designed for quartz rather than other stones. Top brands include Dupont Granite & Marble Countertop Scratch Repair Kit, 3M Scotch-Brite Surface Renew and Restore Kit, Prosoco Countertop Scratch Remover, and Countertop Magic Scratch Repair Kit.

Can I use automotive wet sandpaper to sand down scratches?

While wet sanding with very fine grit paper (1500-2000 range) may work, it’s best to use sanding sponges made specifically for quartz. They contain the appropriate level of grit to smooth scratches without grinding too aggressively into the surrounding surface.

How long does quartz scratch filler last?

When applied correctly, the filler creates a permanent bond with the quartz. However, if the scratch is in a high use area, the filler may wear down faster than the surrounding quartz over time. Reapplication may be needed every few years.

Will healed scratches on quartz always be visible?

Scratches repaired through sanding, polishing and filling will often still show some signs of damage under certain lighting. The methods blend and minimize scratches but do not make them disappear completely in most cases. The goal is to make the scratches far less obvious.


Quartz countertops are susceptible to scratches over time but repairing damage is very achievable. With some gentle sanding, polishing, and filler products, most light scratches can be blended and rendered nearly invisible. Remember to use specialty quartz products and maintain a light touch. Prevention is also key – follow quartz care best practices to keep your counters looking their best. With some patience and the right techniques, you can restore the flawless beauty of your quartz surfaces.