If you don t know how to seal natural stone such as marble it s easy to do by using granite gold sealer.
Toothpaste stain on granite.
Even treated tops though ma.
You will want to create a thick paste.
Talc powder and hydrogen peroxide.
After 15 minutes spray some more cleaner and scrub with a scrubber sponge or stiff bristled brush.
Cover the area with plastic wrap and.
If you notice the stain when it is fresh rub a damp cloth back and forth over the area until all the toothpaste residue is gone.
Mix baby talc powder with acetone into a paste like peanut butter or soak a mat of 10 12 paper towels with acetone and apply to the toothpaste stain about 1 2 inch thick with a 1 2 border.
This is a solution that can be created by a mixture of baking soda and 3 percent hydrogen peroxide.
After cleaning the stone s surface with granite gold daily cleaner spray the sealer on the stone in 3 foot sections immediately wiping it into the stone with a lint free cloth.
Generic products like hydrogen peroxide isopropyl alcohol vinegar and bleach will clean granite and getting the granite really clean is what will reveal that shine.
Mix these ingredients in a bowl until it forms a thick paste.
Then spray or pour clean water to rinse the granite.
Sounds to me that someone spilled bleach on them which unfortunately has removed the color of the countertop.
As long as marble is frequently cleaned and sealed toothpaste shouldn t be a major concern.
Removing water stains from granite typically involves the use of a poultice.
Some other culprits include coffee tomato juice grape juice mustard citrus products toothpaste and anything with chemicals.
Begin by mixing the poultice ex.
The layer of paste should be about one fourth of an.
The marble could be sealed with a commercial sealant or carnuba wax.
However the shine won t last very long since these products evaporate and the surface gets dirty again.
Then dry it to prevent more spotting.
Apply the mix to the stained area keeping it only on the stain.
When water seeps into your granite countertop it leaves a dark spot that evaporates in a few minutes and returns to normal.
Wipe the stain up with a damp cloth immediately if possible.
Cover the poultice with plastic wrap and seal all the edges with blue painter s tape.
And teach your household to use half the toothpaste twice the brushing and to rinse gargle and spit close to the drain.
Once this happens apply the solution to the stain.
If the water soaks into the countertop evaluate reapplying the sealant.
Since granite and other natural stones are porous many experts recommend treating these countertops with a penetrating sealer.