There are two types porous and non porous. You can also seel porous concrete to make it non porous.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
Computer screens.
impermeable or non-porous.
Porous means 'with holes'. So non-porous means 'without holes'
No but you can make them non-porous by putting a satin acrylic finish on them.
No but you can make them non-porous by putting a satin acrylic finish on them.
No, chalkboards are a porous material.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
Gunite is a type of sprayed concrete, and is basically as porous as concrete is.
All natural store is porous and needs to be sealed. Travertine is the most porous over marble and granite
computer screens are mad out of plasma. It is also made of petrolium. which means plastic.