To prepare your surface for sealing, use Trident's powerful yet safe Wipe Out, robust multi-purpose and surface cleaner, that will remove deep-set ground-in dirt and grime. If the surface has efflorescence, salt or mineral stains along with deep-set ground-in dirt and grime, White Water would be the ideal solution to prepare your surface for sealing. When used properly, our cleaners are formulated so they won't damage or discolor surfaces. If sealer is present on the surface, it needs to be removed before sealing. View the Sealer Removal page to learn more. A properly cleaned surface will look best and provide optimal conditions for sealing.