The recycled cardboard is obtained from the collection of appropriately selected paper waste.
It consists of several layers of recycled material, so the interior is gray. It is rendered printable by one or more coating layers on the cover.
The back can be gray (GD), manilla (GT2) or Havana (GT4).
It is widely used in general packaging.
The lighter grammages are generally paired to corrugated cardboard to get a cheap, robust and nice packaging.