Aqua Mix Phosphoric Acid Substitute (1 qt.)


Aqua Mix Phosphoric Acid Substitute is a premixed acidic treatment designed to remove grout haze, mineral deposits, rust stains, mortar smears, and efflorescence. It is effective for removing most hard water stains, lime deposits, and soap scum. Phosphoric Acid Substitute also removes cement grout and mortar residue from tile, concrete, and masonry. Etches concrete. No VOCs, No phosphates.

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Aqua Mix Phosphoric Acid Substitute (1 qt.)
  • User-friendly cleaner
  • Removes grout and mortar haze, hard-water stains, rust, soap scum and more.
  • Coverage: Approximately 100 to 300 sq. ft. per quart depending on dilution
  • Do not mix with other cleaners

For use on:
Acid resistant natural stone (such as granite and slate), ceramic, porcelain, quarry, Saltillo, terracotta, and other acid resistant tiles.


  • Do not allow product to come in contact with any non-recommended surface
  • Do not mix with other cleaners
  • Acids of all kinds may etch, lighten, or change the color of cementitious material, metallic glazes and some natural stones such as marble, limestone, travertine and some basalts

Application of Product:
USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when?handling product.?Read entire label before using. Concrete and grout installations should?be cured a minimum of 10 days. Sweep, vacuum, or wipe surface.?Pre-wet surface with water.

Mix Phosphoric Acid Substitute Cleaner as?follows:
LIGHT SOIL BUILDUP: Mix 1 part cleaner to 3 parts water.
HEAVY SOIL BUILDUP: Use product up to full strength as needed.
Apply solution to wet surface and scrub with a white nylon bristle?brush. Work in small areas. Flush with water immediately after
brushing. For heavy concrete etching, allow solution to sit for up to 30?minutes prior to flushing with clean water.

Cleaning of equipment:
Clean tools with water before material dries.

Related Reading:
Here’s a great article to read if you are still using phosphoric acid: Phosphoric Acid: Why it should no longer be a ?preferred? acid in our industry


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