First i tried a mild solution of dishwashing soap and water.
Bleach on marble stains.
Marble is made of calcium carbonate which reacts with acidic and alkaline substances like bleach.
Even once the mold spores are dead the black staining may remain.
For example coffee stains will show up on a marble kitchen countertop near the coffee marker.
These stains can be the result of a water glass that was left on a marble countertop for too long or from hard water buildup around sinks and showers.
There also are light grayish stains around the drains.
Razor blade and paint striper.
Because of its porous nature stains and dirt seep into the marble and are difficult to remove by traditional cleaning methods.
Mold stains can be difficult to remove.
Other than the stains the cultured marble is in very good condition and the original gel coat still is relatively shiny.
Removing mold stains from marble.
Below are some more specifics on the method of removal for each stain.
See mold stains section below.
I started to scrub.
See our article of etch removal.
If you don t catch a spill quickly hello red wine spilled at a lasts until 2am dinner party there s hope.
The yellow stain didn t fade a bit.
If the hydrogen peroxide was unable to remove the staining diluted bleach may be the only product able to do so.
The above table details what you will need to remove each type of stain.
I have some light hard water and rust stains on my cultured marble one piece bathroom vanity tops with sinks.
Bleaching stains removes most discoloration from unsealed marble.
I escalated from diluted simple green to undiluted simple green to a vinegar water solution to a diluted bleach situation to pure uncut bleach on a toothbrush.
Or rust stains will show up near metal decorations and a water source.
In general we recommend against using any of our tilex bathroom cleaners both with and without bleach on marble so i wouldn t advise bleach usage here.
Although the surface is disinfected and safe it may remain unsightly.
Marble is a porous material just like any other stone.
Only use bleach on light colored marble and do not.
Think about what objects are typically used near the area of the stain.
Mold is a common problem in many bathroom settings.
Your tiles may end up etched pitted or discolored.
Marble stain identification tips.
For most organic food stains the marble institute.
Mold can stain marble bathroom countertops floors etc.
The reaction happens in seconds and corrodes or eats away the marble essentially destroying the polished layer on the surface.
See paint stain section below.
Getting out pesky stains.
I don t recommend this unless like.