Why pH-Neutral Cleaners Are Crucial for Protecting Your Natural Stone Surfaces



If you’ve had a natural stone countertop or floor installed, you’ve probably asked the contractor or salesperson how best to clean it. The typical response: use a pH-neutral cleaner. But what exactly does that mean?

Let’s dive into a quick chemistry refresher. No need to stress; it’s easier than you might think! The pH scale helps us understand whether a solution is acidic or alkaline, stretching from 0 to 14. Solutions with a pH below 7 are acidic, while those above 7 are alkaline. And right in the middle—at pH 7—is the sweet spot known as neutral.

So why is a neutral cleaner important for natural stone? It's simple science again. Many natural stones, such as marble and travertine, or stones treated with resin for bonding or color enhancement, are sensitive to acids. This includes almost all natural stone surfaces. A cleaner with a pH value below 7 can etch or burn the stone, leaving it discolored and rough. Common household cleaners vary widely on the pH scale for good reasons—alkaline solutions excel at removing organic material like dirt, grease, proteins, and oils. In contrast, acidic cleaners are great for eliminating inorganic buildup like calcium, rust, and other minerals. However, neither is ideal for stone, especially for routine maintenance.

Home remedies like vinegar and lemon juice, with a pH of around 3, should always be avoided on calcite-based stones, such as marble. These acidic substances can severely damage the surface, causing unsightly etching and discoloration. Marble, which is rich in calcium carbonate, reacts particularly poorly to acids, so it's crucial to steer clear of these common but harmful cleaning agents.

For daily cleaning of your natural stone surfaces, a pH-neutral cleaner is the best choice. Majestic No-Rinse pH Neutral Cleaner is designed specifically for the daily cleaning of stone, providing a thorough yet safe clean. Suitable for all natural stone surfaces and beyond, it comes in a ready-to-use formula or as a cost-effective concentrate that can be diluted based on the job's needs. For most cleaning tasks, a 1:8 dilution ratio works perfectly.

Neutral cleaners are ideal for everyday maintenance, but when you need a more intensive cleaning, it may be time to bring out the heavy-duty cleaners. Please consult your supplier for instructions and product selection on these cleaners.