Spread a inch thick layer of the paste over the stain.
Removing rust stain from carrara marble.
The most effective solvent for rust stains are a liquid commercial rust remover.
But again rust stains are difficult and you ll need to repeat the process several times.
Steps for removing rust from marble a poultice is a homemade stain remover that is often used to treat most types of stains.
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.
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.
To remove rust stains use the rust stain remover poultice.
Unfortunately rust stains are the most difficult of stains to remove from marble.
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.
And it should draw out the stain.
If you try these methods and still do not have success contact a professional to assess the problem.
To make the poultice view the poultice section below.
You ll have to make and apply a poultice probably several times to remove a marble rust stain.
Cover the paste with plastic wrap.
It is then covered in plastic wrap and left to sit for 24 to 48 hours before removing.
Of course if it s a rust stain and it s been there a while it could just be permanent.
Cleaning experiments were performed on artificially discoloured samples of various types of carrara bianco marble and on naturally rust stained marble.
In situations where the carrara marble is constantly exposed to water the water can absorb and oxidize the iron so it rusts.
If you don t have iron out another acid free multi purpose rust stain remover that comes in a powder form can work.
Rust stains are yellow brown stains.
Be sure to buy a rust remover that is non acidic this is critical because an acidic rust remover will make the problem worse.
Purchase you rust stain remover as soon as you can.
Only apply the paste on the stain not on the surrounding areas.
To remove marble rust stains follow the procedures in the removing granite marble stains ebook.
Also the yellow brown stain will return until you stop the source of water.
Mold and mildew stains.
The sooner you treat the marble the easier and quicker it will be to remove the stain.
A second option is this rust stain remover poultice is a eady to use product.
It is a paste that is typically the consistency of peanut butter that is applied to the stained area.