Overlay Panel Jointing Glue is applied as a flat bead to the middle of the board’s edge using the nozzle supplied with the cartridge. The special nozzle dispenses just the correct amount of adhesive for a board thickness of 10 and 12.5 mm. The nozzle will need to be cut to the appropriate length for boards with a thickness of 15 and 18mm (this increases the amount of adhesive applied). The second board is then butted tightly against the first one and fixed into position. At a room temperature of 15 to 25 degrees the adhesive will be fully cured after 18 to 36 hours.