Hi Konrad.
I purchased mine from Dreoilín glass here in Dungarvan. I believe that they got it from Tiperrary Glass. It is 6mm thick and as you can imagine, it has a semi-reflective coating on one side. I put the side with the coating facing out, but placed a 2mm clear glass in front of it for protection, as the film can be scratched easily. Let me know how you get on.