Hi, just answer all questions about rear projection film here. :）
Not all rear projection film can block IR, I haven’t test others but our film sure can and performs well!
We have 2 series film coating process:
#1, （UV+IR）layer integrated in PET layer
#2, （UV+IR）layer integrated in adhesive layer.
#1 can block most of UV and IR while #2 is excellent for UV cut, nearly 100%.
If you are interested in our films, pls do contact