Simple water stains are often the result of condensation from a drinking glass that has been sitting on the countertop for too long.
Water soaks into granite countertop.
This time will vary depending on the type color of granite more on this below.
The porous surface of stone allows water to cling to it and absorb darkening the appearance.
Testing tells you how long it takes for water which represents any liquid to absorb into the stone.
Follow the cleaner s directions first making sure the granite is dry before you start sealing.
Granite countertops look beautiful and are also made of some of the most durable and hard wearing material available.
Usually such a crack requires replacement.
A good granite countertop cleaner will help protect the surface against future damage.
Hard water is water that is particularly high in mineral content.
Make sure you do this sealant test before you do any buffing and cleaning of the granite.
It s not much but because of the porosity the tiny holes that are not visible to the naked eye can absorb water.
Water should not absorb into a granite countertop if a sealer has been properly applied.
On the other hand hard water stains are the result of hard water getting into the pores of the stone.
Maybe not the whole granite slab.
Usually liquids that have been spilled on your countertop will evaporate within half an hour so even if you have very porous granite spilling something like water or oil isn t going to permanently damage your counter.
At least it should not absorb quickly.
If water isn t left to stand on the countertop it s not likely to cause a stain.
Sometimes you can replace a section etc.
However one issue people can have with their granite countertops is water staining.
If the water soaks in your protective seal is inadequate and it s time to call a pro.
If the water soaks into the countertop apply a granite seal or contact a granite restoration professional to get it resealed.
Granite countertops usually need to be resealed every 5 10 years.
This happens when water pools or drips onto a granite counter and is left there to dry.
The lip can get chipped water gets into the crack and it may lead to weakness elsewhere.
These stains will leave behind mineral deposits.
Otherwise you may damage the sealant or the granite.
Get a good quality granite countertop cleaner a granite sealer that s designed to resist water and oil based stains and some clean rags.