Don't think so, Jim. It's quite soft and looks like a sort of thread woven net with a soft plastic coating on it. I have an awful suspicion that it is that anti-slip stuff you put under large things you don't want migrating off the shelf!
Pic of wall in progress - I was going to take more and do an article for Caryl, but got distracted, and forgot to take more pics. Don't tell her, either!
I siliconed the bottom down first and let it dry, then taped it to the bottom out of the way, then spread the moss down - a little bit goes a long way, but I suppose if you wanted it to grow out quicker, you could put a thicker layer down. Then I put some dobs of silicone at the sides and top, and a few in the middle so it wouldn't sag, then sat the netting down on top, and poked it down a wee bit so that the silicone came over the edges of the netting.