t.akustik Contact Glue

It is rely very easy to work with it and panels stick even to the ceiling in a moment. Unfortunately after 4-5 years one or two panels fall off the ceiling, but the same glue was still in my hand and I put it back again. Strange not to fall down all of them, so was probably my mistake. Anyway I can recommend the product because of simplicity to work with it.

Had this one before and only started to fall off a year later. Not too bad.

The product is indicated 1 tube per 0.5-3 sqm

Perhaps if mounting foam to a wall, 1 tube will last 3 sqm
For a ceiling mount, use 1 tube per 0.5 sqm of 4" pyramid foam
You'll use a lot of product. But it does work better than the spray.

I used an albeit ample amount for my corner traps and they have held up great. They are the ones with wood and are particularly dense. 1 star off total due to the amount I had to use vs price but if you want a job done right, then get it right the first time and don't be stingy with it. Follow the instructions especially for porous walls etc.

i used it to put my trap bass oon the wall once it gets dry its there for ever but u are going to have to hold it there till the glue stops being lequid over all a very good option

The product by itself works great. However I did not realize you would need one of those tools to put on it in order to squeeze out glue. I managed to "man" it out and use a hammer; but it was a pain to do so.

I glued the corners and the middle of the "t.akustik HiLo-N40" and it sticks on the wall just fine. Although if you expect to nudge and hit them... I would use more. You may need 2 of these in order to stick ~15 tiles. Or 1 if you use it sparingly.

Pro:
-Sticks really well the phonic isolation
-easy to use
Cons:
-I had to buy quite a lot and still wasn't enough

This works if you need to fix Vicoustic panels to walls or a ceiling - just as well, considering that Thomann doesn't sell the equivalent Vicoustic adhesive! One tube is good for 2-3 panels (Vicoustic Multifuser DC2, Wavewood and/or Cinema Round Fabric). Be sure to get the affordable silicone dispenser "gun" as well.

If you follow the rules this glue is sticking without shifthing after mounting it on the wall.
Small corection possible and when dry good force.

I am very satisfied from this product, given the value for money.
I would definitely recommend combining these with some bass foams for the maximum result for the minimum price you can get for soundproofing your room.
Oh, and don't forget. You can easily use some pins to hang the foams on the wall and when you remove them later, they leave no marks ;)
But for permanent solutions and good quality, use the glue