Is Spray Nine Safe on Quartz Countertops?

Quartz countertops are a popular choice for modern kitchens and bathrooms due to their durability, stylish appearance, and low maintenance. However, like any surface, quartz requires proper care and cleaning to keep it looking its best. Some homeowners wonder if harsh chemical cleaners, like Spray Nine, are safe to use on quartz. Here is a detailed look at whether Spray Nine is safe for quartz countertops.

What is Spray Nine?

Spray Nine is a heavy-duty multi-purpose cleaner and degreaser. It can be used to clean ovens, grills, floors, appliances, and many other household surfaces. Spray Nine contains sodium hydroxide, also known as lye or caustic soda. This means it is an alkaline cleaner with a pH around 13. The high alkalinity helps break down tough grease, grime, and dirt. However, it also makes Spray Nine a very harsh chemical cleaner.

The Safety of Spray Nine on Quartz

Most quartz countertop manufacturers advise against using alkaline cleaners like Spray Nine. The high pH levels can damage the quartz surface over time. According to Caesarstone, a leading quartz brand, prolonged exposure to alkaline cleaners could etch or discolor the surface. Cambria, another top manufacturer, also cautions not to use any cleaners with a pH above 10.

Since Spray Nine has a pH around 13, it is considered too alkaline for quartz countertops. The caustic chemicals can potentially dull the finish, create etching or pits, and strip away the sealant over time. These effects may not be noticeable after the first few cleanings but can accumulate over months and years of repeated use.

Recommended Cleaners for Quartz

To keep quartz counters looking pristine, manufacturers recommend using a gentle pH-neutral cleaner. Look for products specifically formulated for stone and quartz. Popular options include:

  • Method Daily Granite Cleaner
  • StoneTech Revitalizer Cleaner
  • Bona Stone, Tile, and Laminate Cleaner
  • Seventh Generation Stone and Countertop Cleaner

Check the product label and avoid anything with a pH over 10. Stick to water-based cleaners rather than harsh solvents like bleach, ammonia, or alkaline degreasers.

For routine cleaning, a mix of mild dish soap and warm water can also safely clean quartz. Rinse well and use a soft cloth to avoid scratches.

Best Practices for Cleaning Quartz Countertops

To keep is spray nine safe on quartz countertops looking like new, follow these best practices:

  • Wipe up spills immediately to prevent stains.
  • Clean quartz regularly with a pH-neutral stone cleaner.
  • Use a non-abrasive sponge or soft cloth.
  • Rinse thoroughly after cleaning.
  • Reseal quartz every 1-2 years with a stone sealer.
  • Avoid exposing quartz to alkaline cleaners or acidic foods.
  • Don’t use abrasive pads, scrub brushes, or powders.
  • Cut on a separate cutting board, not directly on the quartz.
  • Use trivets and hot pads under pots, pans, and heat-generating appliances.

FAQs About Using Spray Nine on Quartz

Is it okay to use Spray Nine just once on my quartz counters?

No, even a one-time use of Spray Nine could damage quartz and start breaking down the protective sealant layer. It’s best to stick to cleaners made specifically for quartz and other stone surfaces.

What happens if I accidentally used Spray Nine already?

Don’t panic. Give your counters a thorough cleaning with a quartz-safe cleaner to remove any Spray Nine residue. Then be sure to only use recommended products moving forward. If you notice any etching or dull spots, contact a professional stone restoration company.

Can I mix Spray Nine with water to dilute it before using on quartz?

Diluting Spray Nine is not recommended, as it would still contain quartz-damaging ingredients like sodium hydroxide. For an effective natural cleaner, mix a small amount of mild dish soap with warm water instead.

I want a disinfecting cleaner for my quartz. Is Spray Nine a good option?

Spray Nine is a powerful disinfectant, but the high alkalinity makes it unsuitable for quartz. Look for an EPA-registered disinfectant made specifically for stone and quartz instead. Many popular quartz cleaners contain disinfectants that are safer for your counters.

What about using Spray Nine on the grout lines around my quartz countertop?

Spray Nine is very harsh and could damage grout over time. Check your grout manufacturer’s recommendations. In most cases, a gentle grout cleaner or mixture of vinegar and water is safest for grout maintenance.

The Bottom Line

Spray Nine is an effective heavy-duty cleaner but too alkaline for quartz countertops. The caustic ingredients in Spray Nine can etch and pit quartz, causing permanent damage over time. Always check a cleaner’s pH and only use products specially formulated for stone and quartz. With the proper gentle cleaners and care, your beautiful quartz counters will stay looking flawless for years.