So this is not getting glued down. It's free floating locked together. The only place I'm gluing it is at the garage doors where the little ramp transition piece is. I started looking for this style because we put it down over a wood floor at work and for 20 years it's held up well. What I wasn't prepared for was the cost. The stuff we used at work which locked together super securely with a hidden seam was now $20 a square foot. An online search showed anything domestic similar was between $6 and $15.00 a square foot plus freight. So I found this on Ali baba.


I ordered a sample and it seemed ok.
This is what they look like. The specs say 6.5mm thick, my measurement says 7mm.



Since we planned on using some at work we ordered a full container which brought the cost down to $3.04 a tile. Plus Tarrif and freight it ends up at about $3.65 per tile. So for my floor at least $10k cheaper than the nearest option.
. It's solid pvc- slightly resilient but I would not say flexible. You can get a slight bend on it if you are holding a tile . It stands up to jacks no problems. I've beat **** out of it with a dead blow hammer with no discernible damage.
Like I said it's ok. I think one of my problems is it's cold- about 50 degrees. So it has a bit of a memory. They packed it well but they aren't perfectly flat. They have an ever so slight dished shape to them, I assume for the molding process. I think if it was 75 degrees it would be much better to put down. After putting it down you'll have to go back and snap part of the seam down because you will see it's popped up. What I've seen as the oldest stuff I put down is now lying nice and flat after a few days of me walking around and snapping the seams back down that popped. And I mean like they pop up a millimeter- not much.
I've run tracked equipment- my excavator and skid steer which both weight about 12000 pounds on it already and they are unaffected. Same for cars and my tractor. So they are going to be fine, probably better when I get some heat in there, I assume that will speed up the laying down perfectly flat.
I'm just about done with the floor.