Parting line projection is a continuous ridge of material located on the parting line at the ID and OD of the o-ring. This is often caused by mold wear, creating enlarged radii from the mold cavity to the flat plane of the tool.
Parting line projection is a continuous ridge of material located on the parting line at the ID and OD of the o-ring. This is often caused by mold wear, creating enlarged radii from the mold cavity to the flat plane of the tool.