In the double facer in corrugated board production, the moistness of the glue has to be removed from corrugated board quickly and in an energy-efficient way. For this purpose, the product is pressed by belts against a heated surface. In 2009 GKD developed special process belts which represented a far more reliable alternative to the felt belts used up to then; the open mesh structure of the GKD belts has guaranteed even evaporation of steam at considerably higher production speeds ever since. The even layer of residual moisture ensures that the sheets remain flat. Furthermore, bronze wires have been woven into the polyester mesh, which dissipate electrostatic charges from the conveyed material safely and reliably.