PTFE Coatings

PTFE (polytetrafluoroethylene) nonstick coatings are two-coat (primer/topcoat) systems. These products have the highest operating temperature of any fluoropolymer and have extremely low coefficient of friction, fair abrasion resistance and good chemical resistance.

A PTFE coating can withstand a maximum use temperature of 600°F. This coating is typically applied to a thickness of 1-3 mils.

Metal Coatings offers a wide range of coatings to meet your application needs including FEP coatings, which have similar characteristics of PTFE coatings. Both PTFE and FEP coatings are food grade coatings.

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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