In molding, if you don't control the surface temperature, the resin will not flow correctly, which will cause a weld or seam. There is a new process that allows you to eliminate this problem and create weldless or mold-free parts. In order to do this, you must have much higher control of the mold and its temperature. We spoke about the components of this new process and what it takes to create a 3D weldess mold.