Acrylic used in the printing and mounting industry refers to high grade optically clear plastic used for face mounting purposes. It can also be used as a replacement for glass in traditional framing.
Diasec refers to the patented process invented in 1969 to reverse mount a photo print to the acrylic. The process uses silicone to achieve an airtight mount to the acrylic resulting in stunning vibrancy. The process most companies use in the States to emulate the Diasec process and achieve the same stunning vibrancy is by using a pressure laminator with double sided optically clear adhesive.