Tips foam adhesive

This adhesive is just excellent to stick acoustic foam on the wall or ceiling. Although I have used quite a bit, 1 tin reached for about 2 square meters, but it also holds top. Since I have ordered too little foam glue, I bought at the hardware store for 12 for an adhesive foam of owl.

80% of glued using UHU foam sheets came back from the wall and ceiling. And repeated. The owl stuff is absolute junk and I've given up, to stick my missing plates.
100% stuck with the pyramid King adhesive plates hold perfectly. In my next order I order more with, and then bring the now not hanging plates on.

So, this foam adhesive is recommended extremst. As a tip: buy a can more dear, because 7.50 Shipping for just a can is idiotic high.