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Removes cured grout and mortar haze
Dissolves rust stains, efflorescence and other mineral deposits
Not recommended for highly porous tile such as Saltillo
AQUAMIX SULFAMIC ACID CLEANER is a 99.5% granular sulfamic acid to be dissolved in water. For removal of grout and mortar haze, rust and mineral deposits including efflorescence. Uses: Recommended for use on acid-resistant glazed or dense unglazed ceramic tile. Coverage: One pound yields up to 2-1/2 gallons of cleaning solution which will clean approximately 300 to 500 sq. ft.