Marble contains over 55% calcium carbonate, which is a porous material that is sensitive to acidic and high-alkaline materials. This porosity and sensitivity is why it stains so easily. As a result, natural marble requires special care to maintain its shine and colour. Damage such as loss of shine, typically arises due to irregular maintenance, application of improper cleaning methods and inappropriate use of cleaning agents that were never designed for use on natural stones.
Most of our bath soaps used in showering is pH5.5 balanced, neutral to our skin. However, this is slightly acidic to natural marble. Very often, people only use water to clean their bathroom marble floor and wall. To protect marble in a bathroom setting, it is strongly recommended that residues from soap, shower foam, bath gel, shampoo and massaging oil are immediately cleaned away. Allowing these residues to sit for too long on the surface will result in streak marks that will eventually roughen the texture. The surface of the stone will also become dull and develop unsightly whitish marks. The whitish appearance is commonly known as ‘soap scum’. When this change in appearance occurs, it unfortunately cannot be reversed by normal cleaning methods and the marble will have to then be re-polished. Obviously, this is quite expensive.