Efflorescence Remover for block paving and brickwork. Quickly remove efflorescence whiteness caused by excess salt deposits. Apply direct without diluting from watering can or sprayer to affected areas, leave for 10 minutes and rinse away. Will remove un-wanted surface whiteness from block paving and brickwork. In severe cases process can be repeated, as required. If efflorescence remover is applied in preparation of block paving sealer or brick sealer being applied, leave for approx two weeks to ensure efflorescence does not re-appear. Please note this product is not suitable for natural stone.