This specification covers an unfilled grade of virgin polytetrafluoroethylene (PTFE) resin in the form of extruded or molded rods or tubes which are sintered after molding, or, in the case of extrusions, sintered during the extrusion process.

These products have been used typically for parts such as backup rings and seal component for static and light duty applications requiring dimensional stability up to 450 \mDF (232 \mDC) with good mechanical properties, but usage is not limited to such applications. Each application should be considered individually.