Modified PTFE: Click for Data Sheet

Modified PTFE is a chemically modified version of PTFE that has new capabilities in addition to the property characteristics consistent with virgin PTFE material.

Modified PTFE has these new or improved characteristics over standard PTFE:

• Part surfaces are smoother, and less porous - components stay clean since they are less likely to trap contaminants
• Low micro-void content yields improved permeation resistance
• Longer flex life than PTFE
• Increased stiffness & improved creep resistance
• Higher dielectric strength yields superior high-voltage insulation
• Weldable (Utilizing various heat welding techniques with moderate pressure)
  
  Welded PTFE Components - Click for examples of Modified PTFE fusing.

Click below for a comparison of typical material properties:

Teflon® NXT versus Conventional PTFE

Modified PTFE properties at a glance:

Tensile Strength:  4000-4500 psi
Elongation at Break:  400-450%
Specific Gravity:  ~2.16 - 2.18
Dielectric Strength, 76.2 um (.003 in) Film:  208 kV/mm (5,200 V/.001 in)

For more information on Modified PTFE, including DuPont's Teflon® NXT resin,
click on our Teflon ® link.

Note: The property data offered represents average values obtained on laboratory test samples. Values listed are high limits. Properties may vary based upon processing technique and temperature. Data should be used only as a guide in selecting the appropriate compound. Actual performance will be affected by processing methods as well as end use service conditions.