Mold and mildew stains.
Removing rust stain from carrara marble.
Unfortunately rust stains are the most difficult of stains to remove from marble.
To begin with solutions of cysteine in combination with sodium dithionite and ammonium carbonate were tested by immersion of samples into the different solutions.
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.
But again rust stains are difficult and you ll need to repeat the process several times.
To make the poultice view the poultice section below.
Of course if it s a rust stain and it s been there a while it could just be permanent.
Making a poultice is easy but the type of stain you have determines the ingredients of your poultice.
Only apply the paste on the stain not on the surrounding areas.
Cover the paste with plastic wrap.
The most effective solvent for rust stains are a liquid commercial rust remover.
If you don t have iron out another acid free multi purpose rust stain remover that comes in a powder form can work.
In situations where the carrara marble is constantly exposed to water the water can absorb and oxidize the iron so it rusts.
And it should draw out the stain.
You ll have to make and apply a poultice probably several times to remove a marble rust stain.
Spread a inch thick layer of the paste over the stain.
A poultice is a paste that chemically acts on the stain and then draws out the staining substance.
Cleaning experiments were performed on artificially discoloured samples of various types of carrara bianco marble and on naturally rust stained marble.
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.
Be sure to buy a rust remover that is non acidic this is critical because an acidic rust remover will make the problem worse.
However in some cases rust stains can be removed with a marble poultice.
The sooner you treat the marble the easier and quicker it will be to remove the stain.
Purchase you rust stain remover as soon as you can.
It is a paste that is typically the consistency of peanut butter that is applied to the stained area.
As the water evaporates it moves to the surface carrying the rust with it creating a rust stain.
To remove rust stains use the rust stain remover poultice.
A second option is this rust stain remover poultice is a eady to use product.
If you try these methods and still do not have success contact a professional to assess the problem.
Steps for removing rust from marble a poultice is a homemade stain remover that is often used to treat most types of stains.
Rust stains rust stains can usually be removed with a poultice or a non acidic rust remover.
