Cartoflex honeycomb core is characterized by its die-cut holes for ventilation; technically this means that thanks to a perforating unit the paper is perforated uniformly in every cell (“perforated” is translated into Italian by the term “forato”).

This operation, together with lightly milling the inside of the frame, renders the cells inter-communicating, allowing the steam created inside the panel during the mechanical phase of heat pressing to escape. A smooth, dry panel is thus quickly obtained, without the risk of the bending or bursting open of the board panel (that is, preventing the chipboard from coming off the honeycomb panel).

Cartoflex honeycomb’s ventilation system is unique and is absolutely more efficacious than the system used by the other honeycomb producers, that don’t perforate the paper, but they only mill lightly the above part of the honeycomb; in this way every cell communicates with the other through only one hole (as you can see in the photo which compares the two systems). Cartoflex ventilation system, instead, gives to every cell more than one hole, guaranteeing a better air flow and obtaining a drier panel, reducing the problems during the phase of heat pressing.