When you polish floors, you apply a coating that helps protect them from dirt and dust. This coating needs time to dry completely so that it will be effective in keeping your floors clean. You should wait at least four hours after polishing floors before walking on them. If you walk on the floor before it has dried, you could damage the coating and make it more difficult to keep your floors clean. Waiting at least four hours after polishing will give the coating enough time to dry completely.