How Do You Wash Blackout Curtain With White Foam Backing?
I know what you are talking about. The hot sun on the back of the blackout curtain starts to dry out the backing and it crumbles off. If they where my curtains I would hang them on the clothes line and spay them with soapy water or a laundry pre-wash spray, them gently hose off the soapy water with your garden hose. Don’t try to squeeze the water out of them, just let them drip dry outside.
