Alternative ways to create a one-way mirror?
I'm creating a video installation with rear-projection. I want the viewer to see his reflection and the projection so I was thinking of half-silvering Mylar or acetate to create a screen. I also thought of mixing aluminum powder with a clear medium and painting it on however, no luck finding that in Canada.
My only issue with silvering the screen is that it is so large (10x5ft) that I don't know how to go about heating it up when I pour the solution over it.
Looking for suggestions for other materials as well as solutions to these issues. Thanks!