PTFE Coatings

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.

Benefits of PTFE Coated Fasteners

  • Corrosion resistance
  • Chemical resistance
  • Easy assembly & removal
  • Low coefficient of friction
  • High heat resistance

Looking for pre-coated bolts, nuts or studs? Metal Coatings Corp. carries a huge stock of PTFE coated bolts including coated B7 studs and coated 2H nuts. Available for same-day shipping in a wide variety of sizes.

PTFE Coating Statistics
Tensile Strength (ASTM D1708) 3000-5000 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) .12 -.15 static, .05 -.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 .001" - .003"
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