Tomato Stain on Marble Window Sill
How do I remove white stains from tomatoes on the marble kitchen window sill?
How do I remove rain water spots from my mom's marble window sills?
The rain water spots may take some diagnosing, but the white stains from the tomatoes are actually etch marks and not "stains."A stain
occurs when a substance is absorbed into the pores of the marble below the surface. Marble stains
are always darker than the marble color. Etch marks
are marks of corrosion where a substance (either too acidic like tomatoes or too alkaline like most common cleaning products) has eaten into the marble and essentially destroyed a little bit of the marble.
Etching will remove the polished layer creating a dull spot and sometimes lighter or white spot.
Both and etch marks can be removed in most cases, but they require completely different methods. To remove etch marks
on polished marble use a good compound like ETCH REMOVER / Marble Polishing product
, which we find to be the most effective... specifically made for removing etch marks on polished surfaces (honed marble requires a different technique to remove etching). The rain drop spots
could be due to rust or something in the water or etching (acid rain).
So, you need to determine if the spots are darker
(a stain) or lighter
(etching) than the marble.
If the rain drops appear to be etching, then use the polishing product to remove.
If they are stains, then you'll need to follow the procedure outlined in Removing Marble Stains Manual
Unfortunately, there isn't a product that you can just spray on and scrub to clean a tomato stain or any type of stain in marble or stone.
Why? Well, stains are by their very nature below
the surface, so no cleaner or scrubbing device can get to them.
But the step-by-step guide above will provide the most effective and cheap method to get out these and any other type of stain.