Do Seams On A Film Core Matter?
Film cores have two main types of surfaces: those with seams and those without seams. The seams are those lines you see on the cardboard core, spiraling from one end to the other. They can be fairly shallow or pretty deep, and in some cases, they can affect the quality of the final roll of material. Whether or not those seams matter depends on the material going around the core, the depth of the seams, and the strength of the core material.