I assume he meant those thick foam like paper cartons that are in nearly all electronics packages that don't use styrofoam, and yes, either would stop a stapler because it normally puts more space than the length of a staple blade between the item and the outside.
I assume he meant those thick foam like paper cartons that are in nearly all electronics packages that don't use styrofoam, and yes, either would stop a stapler because it normally puts more space than the length of a staple blade between the item and the outside.
Polyfoam? They’re not very thick, especially the ones used for phones and tablets. Theyre maybe one to 2 mm thick.