Start along the top edge with a thick bead of adhesive and work downwards.
Glueing plastic sheet to wall.
Usually there should be two coats applied before sticking the mica because drywall is somewhat porous.
Firmly press the plastic and the other surface together.
Apply construction adhesive to the wall.
Secure your plastic to the other surface with clamps.
Here is more detail about what kind of glue to use on formica.
Hold the plastic up over the wall you want to cover and use a utility knife to cut around extrusion such as windows and pipes.
Start at the top of the wall and work over then down both pressing pulling and smoothing as you go.
Using your brush completely coat the plastic sheeting and the other surface with contact cement.
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.
The glue should be applied with a sprayer paint roller or brush.
Leave the clamps in place until the glue is completely dry.
Place the first sheet against the back wall of the shower and set a level on top.
Hold it firmly against the concrete until the epoxy sets up.
Adjust the sheet until it is level and draw a plumb line across the top either on the drywall or right on the.
Apply the adhesive in short zigzags or waves.
Hold plastic sheeting up to the wall and press into place when properly positioned.