Quartz countertops are an increasingly popular choice for kitchen and bathroom remodeling projects due to their durability, visual appeal, and low maintenance. However, like any material, quartz is not completely scratch-proof. Here is an in-depth look at how easily quartz countertops can become scratched and what you can do to prevent it.
What is Quartz?
Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz content typically ranges from 90-94%, while the rest is polymer resins. These resins bind the quartz particles together to create a hard, non-porous surface.
The end result is a material that is highly scratch, stain, and heat resistant. It does not require sealing like natural stone and is non-porous, making it very hygienic. The addition of pigments during manufacturing allows quartz to be made in a wide array of colors and patterns. This high versatility and durability make it an excellent choice for kitchens and other high traffic areas.
How Easily Does Quartz Scratch Compared to Other Countertop Materials?
Quartz has a hardness rating of 7 on the Mohs scale, which means it is relatively scratch resistant compared to other natural stones like marble (rating of 3) or granite (rating of 6). However, quartz is not quite as hard as materials like sapphire or diamond, which have ratings of 9 and 10 respectively.
In general, quartz stands up extremely well to daily wear and tear. It resists scratches from common kitchen items like pots, pans, and utensils. However, quartz can be scratched by objects harder than its surface. Materials like unglazed ceramics, knives, and abrasive cleaners can scratch quartz if rubbed aggressively across its surface. Quartz is also vulnerable to chipping from heavy impacts.
Overall, quartz is more scratch-resistant than marble, soapstone, laminate, and wood countertops. Granite and ceramic tile tend to be comparable in terms of scratch resistance. Stainless steel and solid surface materials like Corian are sometimes more scratch resistant than quartz.
Factors That Impact Scratch Resistance
While all quartz has excellent scratch resistance, there can be slight variations depending on specific manufacturing techniques. Here are some factors that affect how easily quartz can scratch:
- Quartz Content – Quartz surfaces with higher natural quartz content tend to have increased surface hardness and scratch resistance. Most quality quartz contains over 90% crushed quartz aggregates.
- Resin Type – Manufacturers use different types of polymer resins to bind the quartz particles. More hard, durable resins usually correlate with increased scratch resistance.
- Pigments – Colored pigments are added for aesthetic purposes. Some very light or dark pigments can slightly decrease surface hardness, while neutral tones maintain maximum scratch resistance.
- Finish – Matte or lightly textured finishes help minimize the appearance of marks and scratches compared to a glossy polished finish.
- Sealer – Some quartz is sealed at the factory while others remain unsealed. Factory sealed quartz provides added protection.
- Brand – Respected quartz brands like Caesarstone, Cambria, and Silestone undergo rigorous testing to ensure optimal scratch resistance.
How to Prevent Scratching
While quartz is impressively scratch resistant for everyday use, proper care is still required to maintain its pristine, smooth surface. Here are some tips to prevent scratching:
- Use cutting boards instead of cutting directly on the countertop.
- Don’t drag cookware with rough bottoms across the surface. Lift objects to move them.
- Clean spills promptly to avoid residue building up.
- Use only soft, non-abrasive cleaning cloths and sponges for wiping the counters.
- Avoid using harsh cleansers and chemicals. Stick to mild soap and water.
- Don’t apply heavy pressure when cleaning. Let the cleaning agents do the work.
- Routinely inspect countertops and address scratches early before they worsen.
- Consider using trivets or hot pads under cooking pots and pans.
- Apply a penetrating quartz sealer every 1-2 years for added scratch protection.
What To Do If Your Quartz Countertop Gets Scratched
While following the proper care guidelines can minimize scratches, it’s unlikely you can prevent them entirely over years of use. Light superficial scratches are generally only visible at certain angles. Here are some tips if you do notice scratching:
- For minor scratches, use a polishing kit specifically designed for quartz. This contains a mild abrasive polish that can buff out imperfections.
- Consult a professional stone restoration company for deeper scratches. They have specialized equipment to carefully polish quartz without damaging the surface.
- Very deep scratches may require filling with a quartz-specific filler product. This infusion process disguises scratches by blending them with the surrounding quartz.
- Severely damaged quartz may need replacement. Fortunately, small damaged sections can often be seamlessly replaced rather than the whole countertop.
- Consider changing the finish when significant scratching occurs. For example, switch from a polished to honed or concrete finish, which hides imperfections better.
Maintaining Your Investment
Quartz countertops are a significant investment that can last for decades if properly cared for. While no material is completely impervious to damage, quartz’s superior scratch resistance allows it to maintain its smooth surface and aesthetic appeal. By addressing scratches quickly and using preventative care measures, you can enjoy durable, beautiful quartz counters that stand the test of time.
Frequently Asked Questions
How does quartz compare to granite and marble for scratch resistance?
Quartz is significantly more scratch resistant than marble or granite. It ranks a 7 on the Mohs hardness scale, compared to around a 3 for marble and 6 for granite. Granite resists scratches from steel and most kitchen items but can still scratch from cutlery and abrasion over time.
Can you scratch quartz with a knife?
Yes, it is possible to scratch quartz with a knife if dragged forcefully across the surface. The extreme hardness of steel knives makes them likely to scratch. However, light use of cutlery on a chopping board will not damage properly cared for quartz counters.
What household cleaners can scratch quartz?
Harsh cleansers containing abrasive particles, bleaches, ammonia, acidic substances, or alkaline chemicals can potentially scratch, etch, or discolor quartz if left to sit. Mild soap and water is the recommended cleaning method. Non-abrasive quartz cleaners are also safe.
How deep of scratches can quartz repair kits fix?
Light surface scratches are the prime candidate for DIY repair kits. Deep scratches extending below the surface may require professional refinishing. Any scratches that catch your fingernail are too severe for basic repair kits. Consult a stone pro for heavy damage.
Does a honed finish help hide scratches better than polished quartz?
Yes, honed quartz has a matte look that hides fine scratches much better than polished. Concrete-style finishes are also effective at disguising imperfections. However, all finishes require proper care to prevent scratches in the first place.
Conclusion
While not completely scratch-proof, quartz offers excellent scratch resistance compared to many other countertop options. Daily use with proper care is unlikely to damage quartz surfaces. However, accidents do happen. Knowing what causes quartz to scratch gives you the knowledge to prevent it through smart care and maintenance. If scratches do occur, timely repairs can often restore quartz to its original flawless condition. By understanding how easily quartz can scratch, you can enjoy this low-maintenance material for years.