All natural stone surfaces need to be waterproofed periodically. This is because stone is naturally a porous material and can absorb not just water, but the accompanying bacteria, food particles, and liquids that we use throughout our home. Not proper waterproofing natural stone countertop or floor tiles, leaves the surface vulnerable to absorbing foreign substances, which can weaken the stone and potentially lead to the growth of bacteria. When you apply these products over your natural stone surfaces, it acts as a protective layer against weather, moisture, salt, stains and colour fading.