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What is a non-porous material?

A:

Quick Answer

A non-porous material is one that cannot absorb liquid or gas. Glass, metals and hard plastics are examples of non-porous materials.

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Full Answer

Porous materials have holes or pores which makes it easy for gas or liquids to pass through them. A sponge is an excellent example of a porous material. Semi-porous materials allow certain liquids or gas through, usually by diffusion. An example of semi-porous materials are those used to purify water. Human skin is is also a semi-porous material.

A non-porous material lets nothing through. It is generally too hard for things to pass through and doesn't have holes to allow substances in or out.

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