First few minutes
Just happened? Do this first
- Blot the mark now with a dry paper towel.
- Keep heat off the stone until the mark is gone.
- Test any remover on a hidden spot first.
Sweat on marble is a water-soluble residue, so a fresh mark can often lift with a blot and a gentle clean. Older marks that have set into the stone need a poultice left on for 24 to 48 hours, and some may take up to five applications or never come out completely. Marble can't take acid, so keep every cleaner neutral from the start.
Figure out whether your surface is polished or honed before you scrub, because sweat stains on rock like this react differently to pressure. Stay away from vinegar and lemon, since both are acid and will etch the stone. If the mark outlasts a few poultice rounds, that's your cue to call a stone restorer instead of reaching for harsher products.
Before you start
What marble & natural stone can take
Safe to use1
- Water
Use with care5
- Chlorine bleach
- Oxygen bleach
- Solvents (alcohol, spot removers)
- Scrubbing and abrasives
- Heat, once the stain is out
Avoid1
- Acids (vinegar, lemon)
7 items
What you'll need
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- Paper towelsLift the sweat off the surface without wiping it across the stone. (opens Amazon)
- Soft white clothsFlush, dry and buff the stone without scratching it. (opens Amazon)
- Mild soapFlushes the sweat residue from the surface. (opens Amazon)
- Neutral stone cleaner or stone soapCleans the stone without acid. (opens Amazon)
- White absorbent powder (kaolin, diatomaceous earth, whiting or talc)Forms the poultice that draws out a stubborn stain. (opens Amazon)
- Plastic wrapKeeps the poultice from drying out during its 24 to 48 hours. (opens Amazon)
- Distilled waterRinses off the poultice after each round.
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6 steps
Step by step
Step 1 of 6
Blot the fresh mark
Press a dry paper towel onto the mark and lift, so the sweat is soaked up rather than pushed across the stone. Switch to a fresh section of towel until no more moisture comes up.
Careful. Don't wipe a fresh spill, because wiping spreads it across the stone.
Step 2 of 6
Flush the area with soap and water
Flush the area with water and mild soap, then rinse it several times with plain water. Dry it with a soft cloth so no soap film is left on the stone.
Step 3 of 6
Clean with a neutral stone cleaner
Work a neutral stone cleaner or stone soap over the mark with a soft cloth. Wipe it off and dry the area so you can see what's left.
Tip. Pretest any remover on a hidden spot first and stop if color transfers or changes.
Careful. Never use vinegar, lemon, or other acidic cleaners on marble; they etch or dull it.
Step 4 of 6
Check the mark at a low angle
Hold a light low across the stone and look at the spot from the side. A dull spot that shows up in that light is an etch, which needs polishing rather than stain removal, while a colored mark is still a stain.
Tip. Only an unknown stain starts with the mildest liquid; a food or drink mark indoors would call for 12% hydrogen peroxide with a few drops of ammonia, but that isn't needed for sweat.
Step 5 of 624 to 48 hours
Apply a poultice to the stain
Mix a white absorbent powder such as kaolin, diatomaceous earth, whiting or talc with the neutral stone cleaner until it forms a peanut-butter paste. Spread it 1/4 to 1/2 inch thick over the stain and cover it with plastic for 24 to 48 hours.
Careful. Whiting or iron-type clays such as fuller's earth should never be mixed with acid chemicals in a poultice, because the reaction cancels it out.
Step 6 of 6
Rinse and repeat if needed
Scrape off the dried poultice, rinse the area with distilled water and dry it. If the stain is still there, repeat the poultice, since difficult stains can take up to five applications.
If you'd rather buy than mix
Best products for sweat on marble & natural stone
Look for a neutral stone cleaner or stone soap made for marble. For the poultice, a fine white powder such as kaolin or talc works well.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on marble & natural stone, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
The blot should lift most of a fresh mark on the first pass. Once the stone is dry after the flush and cleaner, the area should look even with the stone around it. If a faint shadow is still there, the poultice is the next move.
What changes for yours
Adjust for your marble & natural stone
Polished marble tabletop
Polished marble shows a dull spot more clearly than any other finish, so check it at a low angle after the cleaner dries. If the surface looks dull, it's an etch, and the fix is polishing rather than another round of cleaning.
For a sweat mark that's still visible, go straight to the poultice and keep the rest of the steps the same.
Honed or matte marble
Honed and matte marble takes the same blot, flush and cleaner steps. The main change is the low-angle check, which can be harder on a matte surface, so look at the stone in daylight after it dries.
If a faint mark stays, the poultice is still the right step, and it's worth repeating it rather than scrubbing the surface.
Marble floor tile
A sweat mark on floor tile is usually confined to one tile, so limit the cleaner and the poultice to that tile. Rinse the surrounding area with plain water after each round so the cleaner doesn't sit on the rest of the floor.
Ask a stone restorer about the tile if a dull spot remains after the poultice, since a floor takes more foot traffic than a tabletop.
Marble vanity or countertop
A vanity or countertop gets the most daily cleaning, so the neutral product matters more here than anywhere else. Keep a neutral stone cleaner by the sink and use it every time, instead of grabbing whatever is under the sink.
Dry the surface after each clean, and check it at a low angle once a week so you catch an etch before it spreads.
Old, dried or set-in stains
An old sweat mark on marble is harder to lift, so start with the poultice rather than repeated rounds of cleaner. Use the same mix and let it stay under plastic for 24 to 48 hours each time.
A mark that has dried is treated the same way, and it usually takes more than one round. Rinse with distilled water between rounds and check the stone at a low angle before you decide the next step.
Some marks never come out completely, even after up to five applications, so a lighter mark can be a realistic goal. Most stains can be pulled out during professional restoration, which is worth considering if the mark still shows.
Vinegar, baking soda, peroxide and more
Do home remedies work on sweat on marble & natural stone?
Most common home remedies don't belong on marble, because the stone is calcareous and acids etch it. A neutral stone cleaner and a poultice are the only products that suit marble.
Helps1Skip4Avoid1
What makes it worse
Mistakes to avoid
Don't use heat on the stain
Don't iron the stone, aim a hair dryer at it, or leave a hot pot on the marked area, since heat can set the stain. Use a trivet under hot pots and pans to protect the stone from heat.
Don't scrub with powders or pads
Scouring powders, creams and scrub pads can scratch the stone and make an existing etch worse. A soft cloth and the neutral cleaner are enough for this mark.
Don't use a rust remover on marble
Rust removers containing hydrofluoric acid attack all stone, including marble. If the mark looks like rust, a stone restorer is the safer call.
When to call a professional
Call a stone restorer if the stone is still stained or etched after the poultice rounds, or if a chemical has dulled the polish. Deep scratches, nicks, and deep rust or copper stains also belong with a professional. Worn stone may need periodic refinishing.
Questions
Why does sweat leave a mark on marble?
Sweat is a water-soluble residue, so it soaks into the stone and leaves a mark as it dries. The sooner you blot it, the less it has to soak in.
Can I use bleach on a sweat mark on marble?
No, not for sweat. Chlorine bleach is only listed for ink on light-colored stone, and the steps don't call for it here. The neutral stone cleaner is the right product for this mark.
Will a poultice dull my marble?
It can dull polished stone, so check the surface after each round. If a dull spot shows up at a low angle, it's an etch and needs polishing rather than more stain removal.
How long does a poultice take to work?
Plan on 24 to 48 hours for each poultice under plastic. A difficult stain can take up to five applications, so expect more than one round.
Will a sweat mark on marble come out completely?
Many do after one or two poultices, but some marks never come out completely, especially if they've been on the stone a long time. A stone restorer can often lift what home treatment can't.
Does a dull spot mean the stain is permanent?
Not necessarily. A dull spot that shows at a low angle is damage to the polish, which is an etch rather than a stain. It needs polishing, and more cleaning won't fix it.
Sweat on other materials
Other stains on marble & natural stone
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.