Stone protection we also call it stone sealed or stone penetration. As you know natural stone have the small and invisible pin holes in the surface, then it is easy stain by the dirt or the raining water will be change the color.
Therefore it is very important for you to select suitable Stone Protection material or stone Penetrating material to cover the surface of the pin hole in the natural stone, and it is better for the interior and exterior used.
Black Granite
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