Is Granite A Porous Stone

Most fabricators will apply a sealer to granite countertops before they are installed which will protect them from absorbing liquids too quickly.

Is granite a porous stone.

Granite is relatively non porous compared to other common countertop materials though it still has some porosity. If liquid or stains get down into the stone it can result in damages and weakening of your granite. Even though granite isn t as porous as other stones it still needs to be sealed. How porous your granite countertop is will depend on how it is finished and how it is treated.

Even worse germs bacteria and mold can invade unsealed granite counter tops with stains running not far behind. Polished granite is the most durable. Like all natural stone granite is susceptible to liquid sinking into its surface. Also granite is immune from the damages of most common household acids.

Being porous is not necessarily a bad quality. Granite is a porous natural stone. This means that if it is not properly sealed liquid is able to penetrate its surface. If liquids are left on the surface for long periods of time they will eventually absorb.

Alas its porous surface is granite s kryptonite. 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.