Anti-Etch & Stainproof Sealer for Countertops

StainZero is a crystal-clear anti-etch coating and stainproof sealer for marble and other natural stone. It stops etching and staining on countertops, islands, bar tops, vanities and tables, and it's backed by a Lifetime Limited Warranty.

The most reliable way to stop marble from etching is a protective coating like StainZero, which keeps acids from ever touching the stone. Regular sealers can't stop etching, because they soak into the marble and acid still reaches the surface.

Yes, if you want to stop etching. A regular sealer only slows down stains and needs to be reapplied. StainZero sits on top of the stone, stops both etching and stains, and never needs resealing.

An anti-etch and stainproof sealer for countertops is a clear coating applied over natural stone that stops both etching and staining. Etching is physical acid damage that leaves a dull mark; staining is discoloration that soaks in. A regular penetrating sealer only slows stains because it soaks into the stone and acid still reaches the surface. StainZero sits on top of the stone, so it stops both — applied only by Certified StainZero Applicators and backed by a Lifetime Limited Warranty.

A stain is discoloration that soaks into the stone — wine, oil or coffee. An etch is physical damage: acid dissolves the polished surface and leaves a dull, lighter mark that won't wipe away. Sealers address stains. Only an anti-etch coating addresses etching.

StainZero protects against etching and stains from everyday spills, including lemon, lime, vinegar, wine, tomato sauce, coffee, oil and ketchup.

StainZero does not protect against scratches, chips or heat damage. Use cutting boards and trivets, and lift heavy items instead of sliding them. If damage happens, a Certified Applicator can spot-repair the area.

StainZero protects marble, limestone, travertine, onyx and other acid-sensitive stone. It's made for interior countertops, kitchen islands, bar tops, bathroom vanities, and dining and coffee tables. It is not intended for floors or walls.

StainZero never needs resealing. Residential installations are covered by StainZero's Lifetime Limited Warranty for as long as you own the coated surface.

No. StainZero is not a do-it-yourself product. It's installed only by factory-trained Certified StainZero Applicators, and professional installation is required for the warranty.

StainZero is crystal clear and keeps your stone's natural color and veining. On some white marbles it can slightly deepen the white, much like stone looks when it's wet. You'll usually only notice it next to uncoated stone, like a marble backsplash.

StainZero is crystal clear, and you choose the finish: Matte, SemiSheen or High Gloss, so it matches the look you want. A test spot on your own stone lets you see it before your project begins.

StainZero comes in three finishes: Matte for a soft, natural look, SemiSheen for a gentle satin glow, and High Gloss for a bright, polished shine. Every finish gives the same protection.

Yes. Ask for a test spot before your full installation. It's the best way to choose your finish with confidence.

No. StainZero is non-yellowing and stays crystal clear. For everyday cleaning, use a pH-neutral stone cleaner. Skip bleach and other harsh chemicals: over time they can dull or discolor almost any surface, including marble itself.

Yes. Countertop edges are coated with StainZero as standard, at no extra charge.

Yes. Your stone is restored before StainZero is applied, which removes existing etch marks and most stains. Deep or long-set stains may need extra treatment and are assessed during your consultation.

Most StainZero projects are completed in one to two days, depending on the size of your surfaces and how much prep work is needed.

StainZero is cured on site with a professional UV curing lamp, which gives a fast, complete cure.

Yes. StainZero is solvent-free. You may notice a mild odor while it's being applied, so keep family members and pets out of the work area until it's cured, usually within an hour. Once cured, there's no odor.

Yes. StainZero is food-safe once cured, so you can prepare food directly on your countertops.

Clean StainZero-protected countertops with a soft microfiber cloth and a pH-neutral cleaner. Avoid abrasive cleaners, scouring pads, bleach and ammonia, and use cutting boards, trivets and coasters.

No. StainZero never needs to be resealed. There's nothing to reapply.

A Certified StainZero Applicator can spot-repair the damaged area, so you don't need to redo the whole countertop. Repair pricing depends on how much repair is needed, so the area is assessed before you get a quote.

Every StainZero project is quoted individually. Your price depends on the size of your surfaces, your stone type, your layout, and how much restoration is needed. Contact us for a consultation and quote.

StainZero is installed only by Certified StainZero Applicators. MarblePros is a Certified StainZero Applicator serving Manhattan, New York City, Westchester County, Nassau County, Suffolk County and the Hamptons. You can also find applicators at www.stainzero.com.

Yes. MarblePros is a Certified StainZero Applicator based at 57 W 57th St in Manhattan, serving all of New York City including the Upper East Side, Upper West Side, Tribeca, Chelsea, SoHo, the Financial District and Harlem, plus Westchester, Nassau and Suffolk County and the Hamptons.

StainZero's Lifetime Limited Warranty covers stains and etch marks on residential countertops, islands, bar tops, vanities and tables for as long as you own the coated surface. It requires installation by a Certified StainZero Applicator and registration within 90 days of installation.

The warranty does not cover scratches, chips, cuts or heat damage; discoloration caused by bleach, ammonia or other harsh chemical cleaners; damage from abrasive cleaners; or commercial, outdoor, floor or wall installations. Commercial projects have a separate limited commercial warranty.

StainZero backs the warranty, not just your installer. If your applicator is ever unavailable, StainZero will arrange service through another Certified Applicator.

Contact StainZero within 30 days of noticing the issue, with your registration details, a description of the problem and photos. Visit www.stainzero.com/warranty or call (844) 782-4693.

Yes. Contact StainZero to transfer the registration to the new owner, so coverage continues with the stone.