Is Granite Porous Or Nonporous

This means granite has tiny crevices or holes that allow air and water into the stone.

Is granite porous or nonporous.

Granite is an igneous rock. Often overlooked are details such as the material surface texture. Most fabricators will apply a sealer to granite countertops before they are installed which will protect them from absorbing liquids too quickly. Just last week i inspected a granite that had severe water damage so you never know here s a test you can perform.

Polished granite is the most durable most granite countertops are polished then sealed making them nearly impermeable. To better understand the natural porosity of granite it helps to understand the following details. Put a few drops of water on it and wait 30 minutes. Granite is usually non porous but there are exceptions.

Common hard surface materials are stainless steel solid surface laminate porcelain and a wide variety of tile and ridged plastic materials. Alas its porous surface is granite s kryptonite. All natural stone possesses some degree of porosity. Granite is a naturally porous stone though it s not as porous as some other types of natural stone like marble.

Answer 1 of 1. This means that if it is not properly sealed liquid is able to penetrate its surface. 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.

If liquid or stains get down into the stone it can result in damages and weakening of your granite. The general composition of granite includes silicon dioxide feldspar mica and various minerals. Granite while it is a very hard substrate it is still somewhat porous. Granite is a porous natural stone.

Being porous is not necessarily a bad quality. Come back and wipe the area. Polishing the stone creates a flat smooth surface that reduces the porosity. For example limestone is very porous when compared to quartzite and granite isn t as porous as marble.

If liquids are left on the surface for long periods of time they will eventually absorb. Granite countertops are porous if left unsealed. 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.

Granite is a porous material. Primarily the sealing is done to keep harmful bacteria from penetrating the stone and transferring to food items. If the area is darker then the rest of your granite it means that it has adsorbed some of the water rendering it porous.