clay and not sure what else
Impermeable means that stuff can't go through it. Wax is impermeable to water. Paper towels are not. Glass is impermeable to air. Mesh cloth is not. Some things are impermeable to one thing but not another. Clear plastic is impermeable to water and air, but not light. Lead metal is impermeable to x-rays, but not heat. Which layer is impermeable depends on what it is impermeable to.
Some raincoats will resist a light shower, but mine is impermeable and will keep me bone dry a downpour!
semi permeable lets some substances through and impermeable lets no substances through
There there are many types of impermeable fabrics. Some of the most popular are the polyurethane bonded ones (PUL) often used for rainwear or diaper covers.
an impermeable membrane
Un impermeable is a raincoat.
Yes, plastic wrap is impermeable.
A raincoat is impermeable because it is made with fabric or plastic that is made to repel water.
Preventing especially liquids to pass or diffuse through; "impermeable stone"; "an impermeable layer of scum"; "a coat impermeable to rain"
impermeable
Impermeable material is material that does not allow anything to penetrate it. An example of it is CLAY.
This is an impermeable because it will not allow any fluid to pass through it.