You ll have to make and apply a poultice probably several times to remove a marble rust stain.
Removing rust stain from carrara marble.
Be sure to buy a rust remover that is non acidic this is critical because an acidic rust remover will make the problem worse.
In situations where the carrara marble is constantly exposed to water the water can absorb and oxidize the iron so it rusts.
The sooner you treat the marble the easier and quicker it will be to remove the stain.
A poultice is a paste that chemically acts on the stain and then draws out the staining substance.
Mold and mildew stains.
If you try these methods and still do not have success contact a professional to assess the problem.
Remove metal object s and dry the stone remove the metal object from the stone as soon as you notice the stain and dry the area immediately.
Cleaning experiments were performed on artificially discoloured samples of various types of carrara bianco marble and on naturally rust stained marble.
A second option is this rust stain remover poultice is a eady to use product.
As the water evaporates it moves to the surface carrying the rust with it creating a rust stain.
However in some cases rust stains can be removed with a marble poultice.
Only apply the paste on the stain not on the surrounding areas.
Purchase you rust stain remover as soon as you can.
To remove marble rust stains follow the procedures in the removing granite marble stains ebook.
But again rust stains are difficult and you ll need to repeat the process several times.
It is then covered in plastic wrap and left to sit for 24 to 48 hours before removing.
To remove rust stains use the rust stain remover poultice.
To make the poultice view the poultice section below.
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.
If you don t have iron out another acid free multi purpose rust stain remover that comes in a powder form can work.
And it should draw out the stain.
It is a paste that is typically the consistency of peanut butter that is applied to the stained area.
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.
Spread a inch thick layer of the paste over the stain.
The most effective solvent for rust stains are a liquid commercial rust remover.
Making a poultice is easy but the type of stain you have determines the ingredients of your poultice.
Rust stains rust stains can usually be removed with a poultice or a non acidic rust remover.
Cover the paste with plastic wrap.
Rust stains are yellow brown stains.