Using mesh as a waterproof material

[Tylercc]

How small would screen mesh have to be so that it would be consider waterproof? (ex: screen mesh small enough so that it would not break the surface tension of the water)

 

[davenn]

How small would screen mesh have to be so that it would be consider waterproof? (ex: screen mesh small enough so that it would not break the surface tension of the water)

I suggest you would also have to consider the pressure of the water against the mesh

so tell us more about what you are trying to achieve Dave

 

[Tylercc]

I would like to have my window open when it's raining and feel the fresh air, without my stuff getting wet. I was thinking some weed blocker sprayed with some https://www.liquidoff.com . Thought?