Originally Posted by Nonsequiteur
Has anyone used this in their vivs? I'm wanting to expand upwards with a couple vivs I've built but it's impossible to find pvc panels around here. I happened to see this at a tile store and it seems like it should work. It's fairly rigid, it's made from extruded polystyrene foam. It's made for tile so it's waterproof. My plan was to use glass on either end and the doors and use this or pvc panels, if I can find them, for the back wall.
I don't know anything about that product. But if you are looking for only a back panel (and thus do not care if it is opaque or weird looking) you could just get 2 pieces of 1/8th inch glass cut to size and then laminate them together with silicone. Your local lowes or homedepot (assuming you live in the USA) will have this glass in stock and some (most?) will cut to it to size for you.