It could be from.
Remove rust from carrara marble.
If you try these methods and still do not have success contact a professional to assess the problem.
If you do not succeed with this you can also try using a rust remover product or consulting a marble restoration professional.
Cleaning experiments were performed on artificially discoloured samples of various types of carrara bianco marble and on naturally rust stained marble.
You can cut a few vents in the plastic or just leave a few ends loose so air can flow through.
It is a paste that is typically the consistency of peanut butter that is applied to the stained area.
The most effective solvent for rust stains are a liquid commercial rust remover.
Rust stains are probably the most difficult of marble stains to remove.
And it should draw out the stain.
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Steps for removing rust from marble.
To remove stains caused by rust one method you can try is applying a poultice.
Rust stains rust stains can usually be removed with a poultice or a non acidic rust remover.
Unfortunately rust stains are the most difficult of stains to remove from marble.
Of course if it s a rust stain and it s been there a while it could just be permanent.
Something metallic you put on the marble.
You are able to remove some of the rust with your poultice but then more just bleeds to the surface since the stain is originating inside the marble.
You can try using a specific rust stain remover poultice which would work better but still no guarantee to completely and forever remove this stain or this type of stain from the embedded iron.
Cover the area with a piece of plastic wrap and secure in place with tape.
Once the product has reacted with the rust stain this can be after just a minute or two remove it.
However in some cases rust stains can be removed with a marble poultice.
But because you re dealing with a light marble and a lot of these are skin lightening products as well you re not going to have you should not i should say have a discoloration.
For darker marbles you can leave the product on the stone for about five minutes.
These are very difficult or impossible to remove.
If you are removing a rust stain from white marbles like thassos or carrera.
Yes removing rust stains from carrara marble is possible however it can be difficult depending on the cause and age of the stain.
To begin with solutions of cysteine in combination with sodium dithionite and ammonium carbonate were tested by immersion of samples into the different solutions.
They should be fairly saturated and will stick to the marble with ease.