Once The two substrates are bonded, both an ultraviolet (UV) beam is directed, or heat or perhaps a pressure is partly applied the sealant in between the very first and next substrates 510 and 520, for placing the sealant to fix the main and next substrates 510 and 520 (action https://jiutustore.com/collections/optical-bonding-machine/Optical-Bonding-Machine