A moth got rolled up in the screen. I tried to carefully clean it, but now there is a big black spot.
Where can I get some of the screen coating to re apply?
I'm not sure what kind of screen you are talking about making it difficult to go any further.
Is this a rear projection screen (everything in one box) or a front projection screen (2 piece display; screen on the wall and a box sits in the middle or back of room)?
Either way, it sounds likely a screen will have to be replaced.