What to blank out windows with.

[Westovski]

Hi guys,

Don't post much on here, and this is a bit of a daft question, but you know when working on a house that hasn't got curtains, the windows are very often kind've whitewashed - so they let light in but you can't see through them.

What is used to achieve that effect?

Many thanks

 

[big-all]

windolene i think??

 

[Westovski]

Thanks mate