Stain Removal Chart for Marble and Granite Surfaces

Stain Removal Chart for Marble and Granite Surfaces

Frederick M Hueston StoneForensics.com

This chart provides a guide on the types of chemicals suitable for removing different kinds of stains from marble and granite surfaces. It’s important to remember that both marble and granite are porous stones, so care must be taken to use the right chemicals to avoid damaging these surfaces.

Type of Stain	Chemical Recommended	Notes
Oil-Based (e.g., grease, cooking oil)	Ammonia or mild degreaser	Apply the chemical gently and avoid excessive scrubbing. Rinse thoroughly with water.
Organic (e.g., coffee, tea, wine)	Hydrogen Peroxide (12%) mixed with a few drops of ammonia	Especially effective on light-colored marble and granite. Test on a small area first as hydrogen peroxide can lighten the stone.
Ink (small spots)	Hydrogen Peroxide for light-colored stone; Acetone for dark-colored stone	Apply using a soft cloth and rinse thoroughly. Avoid prolonged exposure as it can etch the surface.
Water Spots and Rings	Fine steel wool (grade 0000)	Gently rub the affected area. This is more of a physical method than chemical but effective for water spots.
Mold and Mildew	Diluted bleach or hydrogen peroxide	Apply and let it sit for a few minutes, then rinse thoroughly. Use with caution and ensure the room is well-ventilated.
Paint	Lacquer thinner or paint remover	Apply carefully and rinse thoroughly. Test on a small, inconspicuous area first as these solvents can be harsh on the stone.
Rust	Commercial rust remover or poultice made with diatomaceous earth and a rust-removing agent	Rust stains can be particularly challenging and may require a poultice to draw the stain out of the stone.
General Dirt and Grime	Mild detergent or stone soap	Use a soft cloth or sponge to apply. Avoid acidic cleaners (like vinegar or lemon juice) as they can etch marble and some granites. Rinse and dry with a clean cloth.

Type of Stain

Chemical Recommended

Notes

Oil-Based (e.g., grease, cooking oil)

Ammonia or mild degreaser

Apply the chemical gently and avoid excessive scrubbing. Rinse thoroughly with water.

Organic (e.g., coffee, tea, wine)

Hydrogen Peroxide (12%) mixed with a few drops of ammonia

Especially effective on light-colored marble and granite. Test on a small area first as hydrogen peroxide can lighten the stone.

Ink (small spots)

Hydrogen Peroxide for light-colored stone; Acetone for dark-colored stone

Apply using a soft cloth and rinse thoroughly. Avoid prolonged exposure as it can etch the surface.

Water Spots and Rings

Fine steel wool (grade 0000)

Gently rub the affected area. This is more of a physical method than chemical but effective for water spots.

Mold and Mildew

Diluted bleach or hydrogen peroxide

Apply and let it sit for a few minutes, then rinse thoroughly. Use with caution and ensure the room is well-ventilated.

Paint

Lacquer thinner or paint remover

Apply carefully and rinse thoroughly. Test on a small, inconspicuous area first as these solvents can be harsh on the stone.

Rust

Commercial rust remover or poultice made with diatomaceous earth and a rust-removing agent

Rust stains can be particularly challenging and may require a poultice to draw the stain out of the stone.

General Dirt and Grime

Mild detergent or stone soap

Use a soft cloth or sponge to apply. Avoid acidic cleaners (like vinegar or lemon juice) as they can etch marble and some granites. Rinse and dry with a clean cloth.

Additional Tips:

Always Test First: Before applying any chemical, test it on a small, inconspicuous area to ensure it does not damage or discolor the stone.

Use Non-abrasive Tools: When cleaning, use soft cloths or sponges to avoid scratching the surface.

Rinse Thoroughly: After using any chemical cleaner, rinse the surface thoroughly with water to remove any residue.

Dry the Surface: After rinsing, dry the surface with a soft, clean cloth to prevent water spots.

Seal the Stone: Regularly sealing marble and granite can help prevent stains and make future cleaning easier.

Remember, the key to effective stain removal is prompt action; the sooner you address the spill, the easier it will be to remove the stain.

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