Black marble surface – RAKU stone protection by Marble Armour
RAKU Nanocoating · Italy

Protect Your
Natural Stone.

US Representative of RAKU — the Italian nanocoating that makes marble, onyx, and other precious natural stone surfaces durably resistant to etching, staining, and acid damage. One day. 10-year warranty.

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Why Unprotected Marble Fails

Natural stone is porous. Wine, lemon juice, coffee, vinegar, and everyday cleaning products penetrate the surface and cause permanent acid etching — white cloudy marks that no polish can fully remove. Most homeowners and venue operators only discover this after the damage is done.

Traditional sealers slow down staining but do nothing to stop etching. They also require reapplication every 1–3 years. RAKU works differently: it bonds at the molecular level to close every pore permanently, creating a zero-porosity surface that acids, oils, and liquids simply cannot penetrate.

The result is marble that looks as pristine on year ten as it did on day one — in restaurants serving hundreds of covers a night, hotel lobbies with constant foot traffic, and residential kitchens used daily.

Italian RAKU Nanocoating Technology

Developed by Lantania in Italy, RAKU is a third-generation nanocoating that reacts with the stone's mineral structure rather than sitting on top of it. A certified Marble Armour applicator completes the full treatment in a single day — no cutting out counters, no operational downtime, no strong chemical odors.

01

Etch-Proof

Acids from food, drink, and cleaners no longer damage the stone surface — the molecular barrier stops them cold.

02

Stain-Proof

Wine, coffee, oil, and coloured liquids bead on the surface and wipe away cleanly. No deep staining possible.

03

Food-Contact Safe

RAKU meets food-contact safety standards for kitchen countertops, restaurant bars, and chef prep stations.

04

10-Year Warranty

Every Marble Armour application is backed by a full 10-year warranty — the strongest guarantee in the stone protection industry.

Residential & Hospitality Applications

RAKU is deployed across two core markets. In residential settings, Marble Armour protects kitchen islands, bathroom vanities, shower walls, fireplace surrounds, and entry floor marble — the surfaces homeowners invest most in and worry about most. In hospitality, RAKU coats restaurant bar tops, hotel lobby floors, spa surfaces, and rooftop venue marble that endures punishing daily use.

Heat resistance up to 1,200°F makes RAKU-protected stone safe next to induction cooktops and under heat lamps. Scratch resistance matching or exceeding the natural stone means it holds up in the busiest commercial kitchens.

One-Day Installation Across North America

Our certified applicators complete the full RAKU treatment in a single day. For homes, that means surfaces are ready to use by evening. For restaurants and hotels, it means scheduling during off-hours with no impact on service days. No faucets removed. No counters cut out. No lingering chemical odors.

Marble Armour serves major markets across North America including Toronto, Miami, Los Angeles, New York, Las Vegas, Denver, Atlanta, Phoenix, and more. Find your location →

Ready to Protect Your Stone?

Contact Marble Armour for a free consultation. Our certified applicators will assess your stone and provide a no-obligation quote.

Request an Estimate