This specification covers a polytetrafluoroethylene (PTFE) resin filled with 15% graphite 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 seal components for dynamic reciprocating and rotary applications requiring dimensional stability up to 450 degrees F (232 degrees C) with good mechanical properties, but usage is not limited to such applications. Each application should be considered individually.
SAE AMS3678/2-1999 history
2016SAE AMS3678/2B-2016 Type 2 15% Graphite Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions
2010SAE AMS3678/2A-2010 Type 2, 15% Graphite Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions
2006SAE AMS3678/2-2006 Type 2 15% Graphite Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions
1999SAE AMS3678/2-1999 Type 2 15% Graphite Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions