Hi Misha, Layer 2 is a acryl (or acryl-like) layer. The top pushes against the edge of the frame where the LCD rests on. The bottom pushes against the backlight bar. You can't simply put this layer down and move it into place like all other 4 layers. This acryl panel needs to be bent vertically. I recommend bending, pushing the top edge on the frame and then the bottom edgea gainst the backlight. Hope that answers your question. But I have a feeling you didn't mean the acryl panel layer although you refered to by mentioning “layer 2” which is the acryl panel. Edit: No, the second layer (the acryl panel) does not have any adhesive.