What are nonporous surfaces? (for bug spray)?

Question

I have a spray that says it should be used on nonporous surfaces. What are some examples? Curtains? Floor? Wall? Glass? Sink?

Answer 1

If you don't know what nonprous is, should you really be using this product? Does your mommy know what your up to?

You better ask her.

Answer 2

Anything that the liquid WON'T sink or absorb into.  So from your list, the glass and sink are probably the only nonporous surfaces.  Although your sink could be porous if it's made of concrete (yes, some are) or a material like Corian.