Phosphoric Acid Cleaner is a concentrated heavy duty acid cleaner designed to remove grout smear.
Indoor and outdoor use
Removes grout smear without damaging grout joints
Removes rust stains and hard water deposits
Much safer for you and your floor than Hydrochloric Acid
No harmful fumes
Not for use on natural stone unless authorised
Recommended to do a final rinse with our pH Neutral Cleaner