Here is more detail about what kind of glue to use on formica.
Glueing plastic sheet to wall.
Usually there should be two coats applied before sticking the mica because drywall is somewhat porous.
Secure your plastic to the other surface with clamps.
Firmly press the plastic and the other surface together.
Apply the adhesive in short zigzags or waves.
Epoxy is a thick and strongly cohesive glue meaning that you can build up the glue around the base of the plastic to help hold it in place.
Place the first sheet against the back wall of the shower and set a level on top.
Step 5 fix the plastic piece in place in the epoxy.
Hold it firmly against the concrete until the epoxy sets up.
Contact adhesive is the industry stander for gluing formica to drywall.
Start at the top of the wall and work over then down both pressing pulling and smoothing as you go.
Adjust the sheet until it is level and draw a plumb line across the top either on the drywall or right on the.
Apply construction adhesive to the wall.
Using your brush completely coat the plastic sheeting and the other surface with contact cement.
Hold plastic sheeting up to the wall and press into place when properly positioned.
Start along the top edge with a thick bead of adhesive and work downwards.
Leave the clamps in place until the glue is completely dry.