The porous granite soaks colors and dyes often resulting in stains after lots of use or exposure to some fluids or objects such as oil based cosmetics food colored drinks and metal objects.
What causes white stain on granite.
These stains can be removed be gently cleaning the granite with one of the following products.
Start by determining the source of the stain.
Some examples of things that might cause these stains are toilet bowl cleaner or spilled white vinegar.
When hard water sits on a granite surface and dries it leaves a visible mineral deposit that often creates white rings especially around faucets.
Black or dark colored granite can develop a white haze over the surface from hard water mineral deposits.
Corrosion typically caused by acids leaving rings or water spots that cannot be removed.
A change in the natural chemical makeup of the stone.
And of course more lightly colored granite is more likely to show stains than darker colors so if you have a white or other pale colored granite countertop it s important to be extra vigilant.
Many cases of granite discolorations are simple stains that are easy to remove.
A thorough cleaning with mild detergent followed by a light coat of olive or mineral oil.
Soft liquid cleanser with bleach household detergent ammonia mineral spirits or acetone.
Not caused by the stone absorbing an agent but rather caused by damage to the surface.
Stains from grease cooking oil and other oil based products cause the granite to darken.
The minerals in hard water cause a different kind of stain on granite.
If you have a light water stain that is caused by condensation you can often remove it using a mixture of mild dish soap warm water and a small amount of rubbing alcohol.
Even a completely sealed granite countertop can stain if a spill is left to sit for long enough.
Hair dyes colored toiletries paint and stain pigments the colorants contained in chemicals when spilled on granite will seep into the granite s pores and discolor the surface.