Join Date: Apr 2000
Location: Ottawa, Ontario, Canada
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Stewart manufacturers all their own screen material so I imagine they can do what you're asking for. Why do you want a black backside? If your screen is going in front of a window they can definitely make and non-opaque version for you to block light from the outside, I don't know if it has a black back, but it probably does.
In any case, a black back shouldn't affect your image on the front of the screen, so if you have any concerns you might as well get it. After all, Stewart doesn't charge extra for stuff like that.