This is particularly true for lighter colored stones like santa cecilia granite and white granite.
Least porous granite.
Much like granite marble is one of the most common countertop materials chosen by homeowners.
Btw i looked up the absorption rate of my granite and it is 1 3.
Also granite is immune from the damages of most common household acids.
Porous materials have minute surface holes that liquids may penetrate leaving stains and eventually eroding or cracking the surface.
How porous is granite compared to marble.
Most granite is porous to a certain degree and thus susceptible to staining.
Strictly speaking some tests measure the accessible void the total amount of void space accessible from the surface cf.
There are many ways to test porosity in a.
And really applying a sealer is no more difficult than painting a wall.
Even worse germs bacteria and mold can invade unsealed granite counter tops with stains running not far behind.
Staining can be easily controlled by application of a sealer on these surfaces.
Porous materials such as granite marble and concrete need to be sealed regularly about every six months says courter.
Alas its porous surface is granite s kryptonite.
But while granite is one of the least porous natural stones that is not the case with marble.
By comparison a more stain prone granite like kashmir white has an absorption rate of 3 5 and would definitely need sealer.
Like all natural stone granite is susceptible to liquid sinking into its surface.
Marble countertops are very porous and require re sealing once every few months.