General product information
Defects in PET Preforms are easily identifiable using the Polariscope PET Preform Strain Viewer Crystallinity is readily identified. Not only can the molecular birefringent flow lines (frings) be seen in colour but the black isoclinic lines are visible when the preform axis are parallel to the polarizing axis of the viewer.(Pet bottles and preforms, compact discs, injection moulded components, acrylic sheets, plastic bags, film etc.
