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Miracle Sealants Phosphoric Acid Cleaner is designed for use on interior and exterior natural stone, pre-cast concrete pavers, concrete and masonry. Fast-acting cleaner formula helps remove grout and mortar residue, hard water deposits, rust and more.
From the Manufacturer
Cleaning for cast surfaces including pre-cast concrete, non-polished natural surfaces including flamed and honed granite, tumbled and honed marble, cleft and hone slate, quarry tile, flamed and honed limestone, unglazed ceramic tile, porcelain tile, cement grout, brick, concrete, mortar and masonry.
Tom gutzwiller
Reviewed in the United States on March 2, 2025
Took the scum off my boats hull
Vadym
Reviewed in the United States on August 5, 2024
Good
Robk1013
Reviewed in the United States on May 20, 2024
Dors not work on Florida pavers
HeyLucyLou007
Reviewed in the United States on February 9, 2021
AWESOME!!! Just purchased a house and the tile floors in the bathrooms and showers were NASTY!!! Bought attachments from Amazon for my cordless drill, mixed the product per directions in a spray bottle and let it set for about 15 minutes and then started scrubbing. Could not believe the gunk that came off the tile and the grout! Restored the grout to like new! Bright white. All I have to do is reseal it now and no more worrying about tearing it out. That’s how AWESOME this stuff truly is. Definitely wear a mask, protective eyewear and use in a well ventilated area! I just ordered more today to use outside with my pressure washer.
Mary Layton
Reviewed in the United States on September 9, 2019
Trying to clean black grout off a tile floor is truly a nightmare! If you have tried to clean grout off your ceramic tiles without much success; try to clean your tiles with a phosphoric acid cleaner. Wear rubber or Playtex gloves and pour a little on the tile. Then take a non abrasive sponge or a scrub daddy and clean the tile. Any residual grout will come right off saving you a lot of scrubbing and headaches. This is the best way to clean residual grout off ceramic tile. You'll be so glad you used the phosphoric acid cleaner. This cleaner worked really well for me.
JOHN CASTANEDA
Reviewed in the United States on August 28, 2019
I bought this product in hopes of cleaning residue off of my porcelain tiles. Mostly residue/soap scum from previous owners cleaning the floors with too much soap. I used as directed and there was no change in the appearance of my tiles. Unfortunately this product is unable to be returned.
Mountain Diane
Reviewed in the United States on July 17, 2019
We were going to buy new glass windows since we couldn't see out of them. My husband said let's give this a try and it worked. We can actually see out the windows again. Great Product.
Mike
Reviewed in the United States on December 31, 2019
Strong enough. Works great to remove hard water deposits from other items like dishwashers and faucets coffee makers. Just works faster than the store brands on these items.
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