If glue is purchased pre-mixed, make sure the proper adhesive has been delivered to your plant. If the adhesive is mixed in-plant, follow the supplier's instructions carefully as to proper mixing procedures and quality control testing. Likewise, follow the adhesive supplier's instructions pertaining to spread rate and cycle times. Make sure clamp operators visually check each component to assure proper spread has been achieved. It is important the panel remain under pressure for the proper length of time.
Proper time is dependent on the adhesive and process used as well as panel dimensions.
Glued panels must be properly conditioned before machining. Conditioning allows the glue to fully cure and the moisture content of the panel to equalize. Moisture is adsorbed into the wood from the glue as it cures. As moisture is adsorbed, the wood along the glue line expands. Conditioning allows the moisture to escape from the expanded wood along the glue line which allows the wood to shrink to its original state.