I don t recommend this unless like.
Bleach on marble stains.
Other than the stains the cultured marble is in very good condition and the original gel coat still is relatively shiny.
Even once the mold spores are dead the black staining may remain.
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.
I started to scrub.
The yellow stain didn t fade a bit.
I have some light hard water and rust stains on my cultured marble one piece bathroom vanity tops with sinks.
Getting out pesky stains.
See paint stain section below.
The bleach has etched the marble causing the dull light spots on your table top.
If you don t catch a spill quickly hello red wine spilled at a lasts until 2am dinner party there s hope.
Mold can stain marble bathroom countertops floors etc.
Marble is made of calcium carbonate which reacts with acidic and alkaline substances like bleach.
Bleaching stains removes most discoloration from unsealed marble.
Marble stain identification tips.
First i tried a mild solution of dishwashing soap and water.
See our article of etch removal.
See mold stains section below.
Marble is a porous material just like any other stone.
For most organic food stains the marble institute.
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.
The above table details what you will need to remove each type of stain.
Your tiles may end up etched pitted or discolored.
Removing mold stains from marble.
Below are some more specifics on the method of removal for each stain.
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.
Mold stains can be difficult to remove.
Mold is a common problem in many bathroom settings.
Water stains are yet another common stain that occurs on marble.
Although the surface is disinfected and safe it may remain unsightly.
If the hydrogen peroxide was unable to remove the staining diluted bleach may be the only product able to do so.
Think about what objects are typically used near the area of the stain.
For example coffee stains will show up on a marble kitchen countertop near the coffee marker.
The reaction happens in seconds and corrodes or eats away the marble essentially destroying the polished layer on the surface.
Razor blade and paint striper.
Only use bleach on light colored marble and do not.