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 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.

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

Extremely low odour, easy application, even overhead tiles stick easily.

Ive got the glue with the sa-N65 foam. The foam is now already 3 months on my walls and it feels still very stuck so im happy with the glue

Take care if you'll use in a no eternal place cause the "glue" is very resistente, this can be good or bad.

Just used these, they stick well, but adhesive spray would be much easier.

Good glue though