Nero Portoro for stairs
All Nero Portoro products suitable for stairs, with prices, formats and tips.
Nero Portoro is recommended for flooring, wall cladding, kitchen countertops, luxury bathrooms, and interior stairs, where its shine enhances the space. It is less suitable for surfaces continuously exposed to aggressive acids or for unprotected outdoor use, as it can stain or deteriorate more easily.
Care and maintenance: To preserve the original look, clean with warm water and neutral detergents, avoiding acidic products. Periodic sealing (every 1‑2 years) is advised to reduce liquid absorption. Use soft, non‑abrasive cloths for daily cleaning.
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Everything you need to know
How much does marble shipping cost?
It depends on weight: a 20 mm slab weighs about 54 kg per m². The configurator shows an instant estimate for your destination.
How do I clean marble?
Warm water and a neutral detergent. Avoid vinegar, lemon and limescale removers; wipe acidic spills immediately.