Reduce Panel Warping Due to Lamination

There are several things that must be observed to prevent the warping on panels after the lamination process both by both hot press or cold press. Make sure before pressing:

1. Must be balanced on both front and back lamination panel core, such as MDF panel core laminated with veneer 0.6mm on both sides face and back. When thickness was different, it will prone to warping. 
2. Veneer must be the same species, likewise to the slicing type e.g. both flat cut or quarter cut equally on two sides of panel core.
3. EMC both panel core and veneer material not more than 8% (ideally 6%). Moisture content difference should no more than 1%.
4. If panel core surface needs to be sanded before hot press due to wooden edge band, manage sanding depth of cut as thin as possible, not more than 0.5mm and it must be evenly sanded on both sides. 

Make sure after lamination process:

1. Provide spacer for panels releasing stress and heat (when hot pressed) with the same spacing and thickness. Place pallet on a flat/balance floor.
2. Acclimatization approximately 1 hour after hot press prior to further processes such as sanding and finishing.
3. Should WIP hold quite long before continued with next steps, then place WIP in controlled room which has air conditioner and dehumidifier. If necessary cover it tightly with plastic wrap in order to minimize the moisture absorption.