PTFE coatings, or Polytetrafluoroethylene, are non-stick fluoropolymer coatings that use a two-coat (primer/topcoat) system. These products have the highest operating temperature of any fluoropolymer and have extremely low coefficient of friction, fair abrasion resistance and good chemical resistance. This coating is normally used where a dry lubricant or low friction, or corrosion resistant coating is necessary. One of the most popular uses of PTFE coatings is for non-stick applications and cookware needed for food grade coatings.
PTFE coating is one of the world’s most sought after non-stick products. It has outstanding release capabilities and can withstand a maximum use temperature of 600°F, higher than any fluoropolymer. This coating is typically applied to a thickness of 1-3 mils.
Tensile Strength (ASTM D1708)
3,000-5,000 psi
Elongation (ASTM D1457)
300-500%
Impact Strength (ASTM D256)
3.5 ft-LB/in
Hardness (ASTM D2240)
50-65 HB (shore D)
Abrasion Resistance (Tabor)
12 mg
Coefficient of Friction (ASTM D1894)
0.12 -0.15 static, 0.05 -0.10 dynamic
Dielectric Strength (ASTM D149)
450 volts per mil
Use Temperature
600°F max
Melting Point
625°F
Thermal Conductivity
1.7 BTU-in/h-ft 2-°F
Chemical Resistance (ASTM D543)
Excellent
Salt Spray Resistance (ASTM B117)
Fair
Water Absorption (ASTM D570)
< .01%
Thickness
0.001″ – 0.003″