How should marble tiles be polished? Marble tile must be polished in order to retain its lifespan and beauty. Marble gives a sense of luxury to any area because of its inherent beauty and toughness. But foot traffic, spills, and general wear and tear can eventually make it look less nice. Polishing is useful in this situation. Polishing extends the life of marble surfaces and improves their visual appeal by bringing back their lustre and smoothness.