Quartz countertops are popular in many homes due to their stylish appearance and durability. However, like any other surface, quartz can get scratched and damaged over time. Thankfully, there are ways to repair and restore scratched quartz countertops to make them look like new again.
What Causes Scratches on Quartz?
There are a few common causes of scratches and abrasions on quartz countertops:
- Cutting food directly on the surface – Knives and other sharp utensils can cut into the quartz leaving scratches. Always use a cutting board.
- Dragging pots, appliances or other objects – Allowing rough cookware or appliances to rub across the quartz can leave scratch marks. Lift objects when moving them.
- Spills with abrasive particles – Spills that contain sand, dirt or other gritty substances can scratch quartz if left to dry on the surface. Clean spills immediately.
- Improper cleaning – Using too much pressure while cleaning or scouring with abrasive pads/cleaners can damage the surface over time.
How Deep are the Scratches?
Before repairing scratched quartz, first determine how severe the scratches are:
- Light scratches – These are surface level and can be buffed out. You cannot catch a fingernail on these scratches.
- Medium scratches – Slightly deeper but the quartz has not been cut through completely. You can catch a nail on these scratches.
- Heavy scratches – Deep abrasions where the quartz material has been cut into. These expose the lower layers and fibers.
The deeper the scratch, the more difficult it will be to repair. Light scratches are the easiest to fix.
Repairing Light Surface Scratches
Here are step-by-step instructions for repairing minor scratches on quartz:
Supplies Needed
- Soft cloth
- Mild non-abrasive liquid cleanser or mineral spirits
- Automotive buffing compound (fine grit)
- Orbital sander or hand-held buffing pad
Directions
- Clean the quartz surface with a mild cleanser and soft cloth to remove dirt and residue. Rinse and dry completely.
- Apply a small amount of automotive buffing compound directly onto the scratch.
- Using an orbital sander or hand buffing pad on low speed, gently buff in a circular motion until the compound starts to haze.
- Wipe away any remaining buffing compound with a soft towel.
- Rinse the surface and check that the light scratches have been minimized or removed.
- Repeat as needed for stubborn areas, reapplying compound and buffing.
- Once finished, clean the entire surface to remove any residue.
Tips
- Work in small sections to focus on problem areas.
- Keep the buffing pad flat and change direction often.
- Avoid applying too much pressure which can worsen scratches.
- Rinse and recheck results frequently.
Repairing Medium to Heavy Scratches
Deeper scratches in quartz will require a more intensive repair process:
Supplies
- 220 to 400 grit wet/dry sandpaper
- Orbital sander or electric drill
- Automotive buffing compound (fine then ultrafine grit)
- Soft towels
- Respirator mask
Directions
- Tape off the area around the scratches to keep the repair localized.
- Starting with 220 grit sandpaper, sand the scratched area in a back-and-forth motion. Apply firm pressure.
- Gradually step up through the grits, applying buffering compound between each, until you reach 400 grit.
- Focus on blending and feathering the edges. Wipe and rinse thoroughly after sanding.
- Apply buffing compound and use a buffing pad to polish until scratches disappear. Use lighter pressure as you progress.
- Finish by buffing out all sanding marks with ultrafine compound.
- Clean the surface to remove residues and examine under lighting from all angles.
Tips
- Work slowly and methodically for best results.
- Keep the sander flat and sand evenly.
- Change sandpaper grits often to avoid deep gouges.
- Be patient – deeper repairs take time to blend smoothly.
Preventing Future Scratches
To help avoid new scratches after repairs:
- Use cutting boards, trivets and hot pads. Never cut directly on quartz.
- Clean spills promptly to avoid debris scratching the surface.
- Do not drag cookware, appliances or other objects across the quartz.
- Use a non-abrasive quartz cleaner for daily maintenance.
- Avoid harsh scrubbing or scouring pads which can damage the surface.
With some time and effort, scratched or damaged quartz countertops can be restored successfully. Be sure to take precautions after repairs to keep your quartz looking pristine.
Frequently Asked Questions
Can I use car wax to buff out light quartz scratches?
No, car wax should not be used on quartz countertops. It can leave behind a sticky residue. Use a buffing compound formulated for stone/quartz instead.
Will bleach or hydrogen peroxide remove scratches from quartz?
No, bleach and hydrogen peroxide should never be used on quartz. They can discolor or damage the surface. Only use cleaners made specifically for quartz.
Can I polish out scratches in quartz myself or do I need a professional?
Light surface scratches can often be buffed out DIY with the right materials and techniques. But deeper scratches may require a professional fabricator for the best results.
Is there a scratch repair kit for quartz countertops?
Yes, you can purchase quartz scratch repair kits online or from hardware stores. They contain buffing pads and compounds tailored for smoothing quartz. Read reviews to compare kit quality.
Will vinegar get scratches out of quartz countertops?
No, vinegar is too acidic for quartz and should be avoided. It can dull the surface. Use a pH-neutral stone cleaner instead.
Conclusion
Scratched or dulled quartz countertops can detract from the beauty of your kitchen. But with some simple buffing techniques and the right materials, light surface scratches can often be minimized or removed entirely. For deeper scratches, a more intensive sanding and polishing process is required. Be sure to take measures to protect your quartz from new damage after repairs are complete. With some patience and effort, your scratched quartz can look amazing once again.