Stain Removal Removing Stains From Stone, Tile and Concrete -

Stain Removal Removing Stains From Stone, Tile and Concrete -

Tagged As

O h, those nasty stains! How do you go about removing that red stain from the fruit drink your son spilled on the floor? What do you use to remove black marker ink from your white marble floor? Does lipstick stain? The list can go on and on.

Removing stains from marble. granite and ceramic tile can prove difficult. There are, however, several precautionary measures you can take:

Any spill should be cleaned as soon as possible. Blot spills with a paper towel or clean rag. At this stage, it is important only to blot; wiping a spill may spread it over a larger area, making a larger mess. Use only cold water and stone soap or a neutral cleaner. Rinse the area several times. If a stain is still present, a chemical poultice may have to be applied.

Avoid using chemicals of any kind until you know which chemical cleaner to use. (See Choosing a Chemical below) Certain chemicals will react with the spilled material and could make the stain permanent.

Marble, granite and certain ceramic tile are porous materials. If not thoroughly sealed, they will stain. The only way a stain can be removed is to literally pull it out of the stone or ceramic with both a chemical and material that will absorb the stain. This chemical absorbent-material combination is what we call a poultice.

Poultices are commonly powder or cloth materials that can be mixed with a chemical and placed on top of the stain. Refer to the table below for some of the more common poultice materials. Clays and diatomaceous earth are safe and readily available, but do not use whiting or clays containing iron with an acidic chemical; iron will react with the acid. and may cause rust staining. It is best to purchase powders that are designed specifically for stone and tile. Consult a stone restoration specialist or your stone supplier if in doubt.

Poultice materials:

Paper towels

Cotton balls

Gauze pads

Clays such as Attapulgite, Kaolin, Fuller’s Earth

Talc Chalk (whiting)

Sepiolite (hydrous magnesium silicate)

Flour

Saw dust

How to apply a poultice

Before you attempt to remove a stain, it is extremely important to know what has caused it. If you don’t know, I would recommend that you consult a stone specialist, or refer to my book on stain removal for a detailed description of the procedure.

To apply a poultice, take the following steps:

1. Clean the stained area with water and stone soap. Remember to blot rather than wipe.

2. Pre-wet the stained area with a little water. Distilled water is recommended.

3. Refer to the chart below and determine which chemical to use for the stain.

4. Mix the poultice material with the selected chemical. Mix until a thick peanut-butter paste consistency is obtained.

5. Apply the paste to the stained area, overlapping the stain by at least . Do not make the application too thick, or it will take a long time to dry.

6. Cover the paste with a plastic sandwich bag or food wrap. Tape the plastic using a low-contact tape.

7. Allow the paste to sit for 1224 hours.

8. Remove the plastic cover and check to see if the paste has dried. If it has not, allow it to sit uncovered until thoroughly dry.

9. Once it is dry, remove the paste by scraping and rinse the area.

10. Examine the stain. If it still remains, but is somewhat lighter, re-poultice until it is gone. If the stain refuses to disappear completely, it is time to give up, replace the tile or call a stone specialist.

Stain removal can be very difficult, and care must be taken when using a poultice.

Tagged As

O h, those nasty stains! How do you go about removing that red stain from the fruit drink your son spilled on the floor? What do you use to remove black marker ink from your white marble floor? Does lipstick stain? The list can go on and on.

Removing stains from marble. granite and ceramic tile can prove difficult. There are, however, several precautionary measures you can take:

Any spill should be cleaned as soon as possible. Blot spills with a paper towel or clean rag. At this stage, it is important only to blot; wiping a spill may spread it over a larger area, making a larger mess. Use only cold water and stone soap or a neutral cleaner. Rinse the area several times. If a stain is still present, a chemical poultice may have to be applied.

Avoid using chemicals of any kind until you know which chemical cleaner to use. (See Choosing a Chemical below) Certain chemicals will react with the spilled material and could make the stain permanent.

Marble, granite and certain ceramic tile are porous materials. If not thoroughly sealed, they will stain. The only way a stain can be removed is to literally pull it out of the stone or ceramic with both a chemical and material that will absorb the stain. This chemical absorbent-material combination is what we call a poultice.

Poultices are commonly powder or cloth materials that can be mixed with a chemical and placed on top of the stain. Refer to the table below for some of the more common poultice materials. Clays and diatomaceous earth are safe and readily available, but do not use whiting or clays containing iron with an acidic chemical; iron will react with the acid. and may cause rust staining. It is best to purchase powders that are designed specifically for stone and tile. Consult a stone restoration specialist or your stone supplier if in doubt.

Poultice materials:

Paper towels

Cotton balls

Stain Removal Removing Stains From Stone, Tile and Concrete -

Gauze pads

Clays such as Attapulgite, Kaolin, Fuller’s Earth

Talc Chalk (whiting)

Sepiolite (hydrous magnesium silicate)

Flour

Saw dust

How to apply a poultice

Before you attempt to remove a stain, it is extremely important to know what has caused it. If you don’t know, I would recommend that you consult a stone specialist, or refer to my book on stain removal for a detailed description of the procedure.

To apply a poultice, take the following steps:

1. Clean the stained area with water and stone soap. Remember to blot rather than wipe.

2. Pre-wet the stained area with a little water. Distilled water is recommended.

3. Refer to the chart below and determine which chemical to use for the stain.

4. Mix the poultice material with the selected chemical. Mix until a thick peanut-butter paste consistency is obtained.

5. Apply the paste to the stained area, overlapping the stain by at least . Do not make the application too thick, or it will take a long time to dry.

6. Cover the paste with a plastic sandwich bag or food wrap. Tape the plastic using a low-contact tape.

7. Allow the paste to sit for 1224 hours.

8. Remove the plastic cover and check to see if the paste has dried. If it has not, allow it to sit uncovered until thoroughly dry.

9. Once it is dry, remove the paste by scraping and rinse the area.

10. Examine the stain. If it still remains, but is somewhat lighter, re-poultice until it is gone. If the stain refuses to disappear completely, it is time to give up, replace the tile or call a stone specialist.

Stain removal can be very difficult, and care must be taken when using a poultice.


Leave a Reply