It got the mold because you suctioned it to the wall leaving water trapped inside the cups a breeding ground in a humid bathroom.
Clean mold off rubber bath mat.
If you d rather not spend your bathroom cleaning time scrubbing mold and mildew from your bath mat be sure to hang it after each use.
Mold is mainly responsible for creating stain the rubber bath mat.
When mold forms on rubber it s important to kill and remove it quickly to prevent long term damage.
To eliminate mold or mildew leave the rubber bath mat in the diluted bleach solution for 3 4 hours.
You might want to throw it away.
Eventually this can cause the rubber to fall apart.
Fill the bathroom with hot water and continue until the bath.
Bleach kills mold faster but may discolor or weaken the rubber.
This will help stay on top of any mildew or soap scum build up in turn preventing moldy bath mats.
We know that you have lots of questions about cleaning and we want to give you those answers.
Place the bath mat in the sink or a large bucket of water.
Put on rubber gloves and pour a small capful of laundry soap in the water.
To freshen up the bath mat with a quick clean scrub the rubber bath mat with a cleaning brush or scouring pad to remove.
If you let is sit in a bleach solution the mold will eventually fall off with maybe a thorough scrubbing sos pad.
Mix it in a spray bottle and apply to the bath mat stain.
When you remove your rubber bath mat from the bathtub to wash it you may notice that your bath mat has left behind stains in your bathtub.
How to remove bath mat stains from bathtub.
These stains are likely excess mold and or mildew.
Hand washing is gentler especially on.
Both vinegar and bleach are effective at killing mold.
So at first start the cleaning by removing the mold.
Apply bleach on the water and let them.
You can wash it in the washing machine cold or warm water please and don t put it in the dryer or you can use borax to clean and disinfect.
Remove these bath tub stains by making a mixture of 1 cup white vinegar and 2 cups hot water.
Keep the mat on the floor and close the exit of the water.
Because rubber is porous the mold may penetrate the surface of the rubber.
If your bath mat has become a victim of mold and mildew you have several recourses.