I've installed quite a bit of Amtico flooring.
I see you used the water based adhesive. Not sure where you are located, but where I live, we have a pretty wide temperature swing plus I wanted the subfloor waterproof.
I used the two part epoxy.
Curious what you installed the Amtico over?
For those that don't know what Amtico is, it's photo realistic PVC flooring. Commercial grade flooring. Extremely tough and wear resistance.
It's held up great in my dental office operatories for the last 10 years.
It's pretty standard in the yachting industry too.
Not sure where the OP installed it, but really not designed to be installed over concrete.
Designed to be installed over Baltic Birch ply.
