Cleaning Granite Countertop CLR Damage

by Richard J. Carr
(Calgary Alberta Canada)

QUESTION:

How do I remove CLR stain from surface. The surface is now cloudy in certain areas of the granite countertop. thanks Richard.

ANSWER:

CLR is pretty acidic and all care should be taken to never expose CLR to natural stone.

What you have is not a "stain". It's physical damage to the stone.

Acids can corrode stone leaving dull and/or cloudy spots called "etching".

Typically granite will hold up better and is not always damaged by CLR, however, when it is there isn't much you can do except call in a stone pro to grind down and re-finish the granite countertop.

Granite is too hard and repairing etching would require skilled use of special abrasives and tools.

If you are mistaken and this is a marble countertop, which is much softer, then you can use the Marble Polish / Etch Remover.

Good Luck,
Ryan

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