Viton™ FreeFlow™ 40 is a fluoroelastomer processing  additive in pellet form. It is designed for addition to  high density polyethylene (HDPE), linear low density  polyethylene (LLDPE), or other nonpolar polymers to  reduce extrusion defects, such as melt fracture or  die buildup. 

Advantages 

• Process improvements in all types of polyolefins  including HDPE, low density polyethylene (LDPE), and  LLDPE 

• Elimination or minimization of surface imperfections  (e.g., melt fracture) 

• Reduction of die buildup 

• Reduction of die pressure, power requirements, and  temperature 

• Increased output (at constant die pressure and  temperature) 

• Improved properties when narrow dies are used in place  of wide dies to reduce orientation 

• Most thermally stable fluoroelastomer process aid