Is Granite A Porous Stone

Granite is a porous natural stone.

Is granite a porous stone.

Alas its porous surface is granite s kryptonite. Granite countertops are porous if left unsealed. If liquids are left on the surface for long periods of time they will eventually absorb. Like all of the products provided by granite gold granite gold sealer is safe to use on all types of natural stone including marble travertine and slate.

Also granite is immune from the damages of most common household acids. Even worse germs bacteria and mold can invade unsealed granite counter tops with stains running not far behind. Most fabricators will apply a sealer to granite countertops before they are installed which will protect them from absorbing liquids too quickly. Like all natural stone granite is susceptible to liquid sinking into its surface.

How porous your granite countertop is will depend on how it is finished and how it is treated. This means that if it is not properly sealed liquid is able to penetrate its surface. If liquid or stains get down into the stone it can result in damages and weakening of your granite. All natural stone possesses some degree of porosity.

Limestone and sandstone are highly porous and readily absorb liquids and are particularly prone to etching and wearing away when they come into contact with acids. Even though granite isn t as porous as other stones it still needs to be sealed. Granite is a porous material.