Azpects EASY Efflorescence Remover, 1Ltr Concentrate The non-acid chemical Salt/Efflorescence Remover has the extra benefit of neutralizing the salts on and within the substrate, lowering the likelihood that the white deposits will recur. Features Salts are dissolved and neutralized by an organic composition for long-lasting effects Prevents salt deposits returning Simply apply, leave for 2 hours, then wash away 1 litre ready to use Installation Guide Shake well before use Using a brush, watering pail, or garden sprayer, thoroughly wet the affected area Leave to work for at least 1 hour, then reapply Leave for 24 hours to allow deep penetration and neutralization of the salts After 24 hours, wash the surface using a hose, a stiff brush, or a power washer