This is a market-leading safe acid, used for removing grout film, lime mortar and cement residue from surfaces, both internal and external. Cement Away can also be used to remove efflorescence encrusted / ingrained dirt plus lime scale / calcium deposits.
Cement Away is ideally suited for use on acid-resistant surfaces such as ceramic and porcelain but can also be used on brick, clay, concrete paving and most natural stones. Do not use on marble or limestone as they are acid sensitive.