Quartz countertops are popular choices for kitchen and bathroom remodeling projects thanks to their durability, stain resistance, and easy maintenance. However, some sealing and care is still required to keep quartz looking its best. Here is a detailed look at how often quartz countertops need to be sealed.
What Is Sealing?
Sealing is the process of applying a protective liquid coating to the surface of stone countertops. Sealers work by getting absorbed into the tiny pores and holes within natural stone surfaces. This helps prevent stains from penetrating deep into the stone.
Sealers also create a barrier to repel water, oils, and other liquids. This protective barrier helps reduce staining and etching on countertop surfaces.
Do Quartz Countertops Need To Be Sealed?
Quartz is an engineered stone made from roughly 90% ground natural quartz aggregates combined with pigments, resins, and polymers. This manufacturing process makes quartz non-porous and dense, unlike natural stone surfaces.
However, quartz still contains microscopic pores that can allow some absorption. Most quartz manufacturers recommend periodic sealing to enhance stain protection. Sealing is especially important for lighter colored quartz that shows stains easier.
So the short answer is yes, sealing quartz countertops is still recommended for optimal protection. But quartz does not require sealing nearly as often as more porous natural stones like granite.
How Often Should You Seal Quartz?
Most quartz fabricators recommend sealing quartz every 1 to 3 years. However, the sealing frequency can vary based on:
- Quartz Color – Dark quartz colors like black and brown generally need less frequent sealing than light colors like white quartz.
- Usage Level – Countertops in busy kitchens may need resealing annually. Bathroom vanity tops that see less use may only need sealing every 2-3 years.
- Quality of Initial Sealing – The initial factory seal and any sealing done after installation impacts the timeframe. Better quality sealing provides longer lasting protection.
- Cleaning Habits – Frequent use of harsh cleaners can deteriorate sealants more quickly. Gentler, pH-neutral cleaners help preserve the sealant layers.
- Localized Damage – Cuts, scratches, and hot pans can damage sealant locally and require touch-up sealing in those spots.
Watch for dark staining or etching that takes longer to wipe away as a sign that it is time to re-apply a fresh coat of sealer. Most quartz manufacturers suggest obtaining a professional re-sealing service.
What Type of Sealer Should Be Used?
Using the correct type of sealer formulated for quartz is important for proper bonding and effective protection. The sealer needs to be non-toxic, safe for food prep surfaces, and create a durable barrier.
Look for quartz-specific impregnating sealers made by reputable brands. Impregnators provide invisible protection within the stone. Topical surface coatings are not recommended as they can alter the look and make the surface slippery.
Water-based silicon or acrylic resin sealers are good options. Silicone sealants tend to be longer-lasting. Avoid solvent-based sealers. Always check that any sealer you use is approved by your specific quartz manufacturer.
How Is Quartz Sealing Done?
Sealing quartz requires more prep work than sealing softer natural stones. Any residual oils, waxes, or dirt must be removed to allow full absorption of the sealer. This is done by deep cleaning the quartz with a mild alkaline cleaner.
A primer may be used first to help the sealer properly bond. The sealer is buffed into the surface using a lint-free cloth or foam applicator. Multiple thin coats are better than one heavy application.
The sealer needs sufficient time to cure based on the product directions. Freshly sealed counters should not get wet for 24-48 hours. Avoid using harsh cleaners for at least a week to allow the sealer to fully harden.
Sealing FAQs
Should quartz be sealed before using?
It is a good idea to have quartz sealed right after installation in your home. This helps protect it from early damage. Factory sealing done before shipment provides some initial protection. But an extra layer of sealing is beneficial.
How long does quartz sealer last?
With proper care, a quality quartz-specific impregnating sealer can last 1-3 years before needing reapplication. Topical sealers wear off much faster.
Does sealing quartz change the look?
High quality impregnating sealers that absorb into the stone are designed to be invisible and not alter the appearance. Some topical sealers can slightly darken or add gloss.
Can I seal quartz myself?
While DIY sealing is possible, it is tricky to get professional-quality results. Hiring a trained stone fabrication and maintenance company is recommended to properly deep clean, seal, and care for your investment.
How much does it cost to seal quartz?
Professional quartz sealing services typically charge around $3-$8 per square foot. The total cost depends on how much countertop area needs sealing. Simple DIY kits may cost $50-$100.
Conclusion
Sealing is an important part of routine quartz countertop care. Annual sealing is ideal, but every 1-3 years is more realistic for most homeowners. Seek professional help to ensure it is done properly. With diligent sealing, your beautiful quartz counters will stay looking like new for many years. Be sure to use quartz-safe cleaners and minimize abrasives. Watch for signs it is time to reseal and proactively protect your investment. With a little TLC, quartz countertops will withstand heavy usage while retaining their durability and visual appeal.