white out (liquid works great on the back of white black out curtains.
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You need to check if the curtains came with any labels. The label will tell you if the fabric is washable. Generally curtains with blackout lining are washable at 40 degrees.
No, not if they're just regular fabric curtains.
an arp warden went round being bossy and made sure people were safe and told them to close their `blackout` curtains.
the blackout crew are from bolton
Homes, businesses and factories all had some curtain or even painted windows that wouldn't allow light to be seen from outside at night as a protection from night bombing raids. So, as soon as the lights were turned on the blackout curtains were drawn to make sure no light was visible to an outside source. If you look around at some of the really old factoies you'll notice some of the window panes are still painted.