Marble

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Defect and Repair

Marble	Defect	Repair
	Cracking Cracks across the span of the marble strip were found mainly at the corners. Inadequate control joint Tiles over moving cracks Cutting and poor handling Direct impact Damaged by other trade after laying if unprotected Inherent characteristics of stones such as natural veins, i.e. stylolites Excessive external vibration	To replace the affected panel by a new one.
	Staining	Minor staining such as coffee/ tea spill, coking oil, ketchup, rust can be removed simply by cold water and stone cleaner, or if stains are still present, a chemical poultice may have to be applied (i.e. Hydrogen Peroxide, Methylene Chloride, Amonia, mineral spirits), mixed with poultice material.
	Efflorescence	Brush, using fiber brushes or more commonly, in conjunction with water spray or chemical cleaning, using fiber or bronze brushes. If the problem still persists, unfortunately, water-cleaning can only dissolves more salt in the stone, and when it dries, the salts return. To correct this problem, do not mop the floor with water. Either vacuum the powder or buff it off with a dry pad. The salts will eventually work themselves completely out of the stone.
	Dampness/Water mark	Torch and seal the surface of the stone to prevent further water seepage. If any stains remain, try a stone poultice on them. The poultice may need to be reapplied two or three times on stubborn stains.

Note: For more defects, please refer to the Defect Library.