Keep your Marble Clean One of the best ways of protecting your marble from stains and damage is by spot cleaning it regularly with a marble cleaner. Shield your marble table or counters with a coverlet when the weather gets bad or move it into storage to prevent damage or etching.Click to see full answer. Subsequently, one may also ask, how do you seal an outdoor marble table? Any marble-topped table can be protected with a sealer. Scrub your marble table with a pH neutral stone cleanser product recommended for your type of stone. Rinse your table with distilled water and dry the marble immediately. Apply marble sealer to the table. Wipe off the excess and repeat across the table. should I seal my marble table? Marble will stain even if you apply a sealer. Mitchell Newman, the Principal of Habitar Design and Stratagem Construction, says: “Marble countertops need to be sealed, which will slow down water penetration and other stains. Even with sealing, though, marble countertops stain easily. One may also ask, can marble table be used outside? But generally speaking it’s best to leave marble and other natural stone unsealed outdoors. This is particularly true for ground and wall tile. For tables and countertops sealing will help prevent stains (and possibly freeze damage) without any real detriment to the stone.How do you protect marble? Care and Maintenance SEAL. Sealing repels staining agents but doesn’t make marble stainproof. PROTECT. Vinegar, citrus, and tomato will etch marble; don’t let them sit on the stone. CLEAN. Avoid using acidic or abrasive cleaners. ” SPOT TREAT. To remove stubborn stains, use a poultice paste.