StonePly stone panels are made from natural marbles, granites, and limestones. All natural stones are porous by nature and easily absorb stains. However, removing stains can be made easy by using a poultice, a material to absorb the stain from the stone. It is important to identify the type of stain so that the proper type of poultice mixture is used.
A poultice is an absorbent powder mixed with a chemical designed to remove a stain from the surface of stone. The poultice powder materials can be found at most hardware stores and include
Sometimes, in lieu of a powder poultice, an absorbent material such as paper towels, gauze pads, or cotton balls can be used.
If using a powder poultice, the poultice should be mixed with the appropriate chemical to form a thick paste.
If using an absorbent material poultice other than powder, the material should be soaked in the chemical and then rung out so it is moist, but not dripping.
Most biological stains can be easily removed without the use of poultice by using a water/bleach, water/ammonia, or water/hydrogen peroxide combination.
Efflorescence is when naturally occurring mineral salts inside real stone are brought to the surface by evaporating water. It appears as a white, powdery substance on the surface of the stone. Normally this is a temporary problem, and the white powder can simply be wiped away from the surface. Once the stone dries out, efflorescence should not be a problem.
Pen and marker stains are extremely hard to remove from the surface of natural stone.
For dark stones, acetone can be used to clean the surface of the stone where the stain appears.
For light stones, a carefully applied mixture of water and bleach.
For a less direct approach, a poultice can be used by combining the white powder with the appropriate chemical from above.
Iron or rust stains are the most common metal stains found on stone, and possibly one of the hardest stains to remove. It may take several poultice mixtures to successfully remove a metal stain entirely.
For rust, a poultice mixed with white powder and any rust remover chemical should be applied to the stain.
For copper, a poultice mixed with white powder and diluted ammonia should be used.
In both cases it may take several tries before you notice any results.
Before trying a poultice mixture, try cleaning the surface with diluted ammonia or mineral spirits. If this does not remove the stain, you can try to clean the surface with acetone (for dark stones) or diluted bleach (for light stones). If both of these methods do not yield results, then a poultice made of white powder mixed with mineral spirits can be used.
Organic stains can be removed by using a powder poultice mixed with either: