Caring for Natural Stone Surfaces

Natural stone surfaces, such as granite and marble, are hard-wearing and one of the easiest to maintain. Proper care is necessary, however, to keep the surface looking new and avoid stains and etching. By following a few simple guidelines, you can ensure that your surface gleams and shines longer.

Sealing

Sealing is the first step in any maintenance plan. The right seal will help protect the surface and prevent stains. Most stone will need to be sealed and then resealed annually. Check with the manufacturer guidelines to find out what sealer has been used and what they recommend. The type of sealer will depend on the surface preparation and the density and porosity of the stone.

Choose the Right Cleanser

For best results, only use pH-balanced cleansers, one that has a neutral pH level of 7.0, on natural stone. The term "pH" refers to the level of acidity or alkalinity in a solution. Cleansers that are high in alkaline are baking soda (pH 9), bleach (pH 11) and ammonia (pH 11). Cleansers that are highly acidic are lemon juice (pH 2.4) and vinegar (2.8). Alkaline and acidic cleansers can remove the natural polish and seal of the stone's surface. This can make the surface dull and allow new stains to penetrate and set more easily.

Most detergents and dishwashing liquid will work as they usually have a pH level of about 6.5. However, you will want to check to make sure that it does not contain any of the above ingredients, which can raise or lower the pH level.

Everyday Cleaning

Always wipe up spills and messes immediately using a soft cloth or sponge. The longer a substance sits on the surface the more damaging they become. Use a pH-balanced cleansers or special stone cleanser to remove any remaining material. Rinse the surface with water and dry with a soft, clean cloth. Do not allow water to sit on the surface as it can cause mineral deposits such as calcium, salt, or lime to build up on the surface.