Dibond has for years been the most successful pasting solution for presenting one's work in an exhibition.
It consists of two 0.3 cm thick aluminum sheets, which surround a 3 cm layer of polyethylene. At the back we apply aluminum rods for flat support.
These material layered in this fashion create a very sturdy result. Indeed, Dibond will not bend regardless of size and conditions. It is the most durable solution and the one often used for outdoor billboards.