FEP Coating
FEP (Fluorinated Ethylene Propylene copolymer) coatings melt and flow during baking to provide smooth non-stick, non-porous films with excellent abrasion resistance. Because the coating is non-porous its chemical resistance is superb. FEP coatings can withstand a maximum use temperature of 205°C (400°F) continuously and intermittently up to 450°F. These coatings are chemically inert to most chemicals and solvents except very strong alkali solutions and fluorine at elevated temperatures. This coating is typically applied to a thickness of 1-5 mils DFT. FEP coatings are available in both water-based and powder forms for many application methods.
FEP Coating Statistics
• Tensile Strength (ASTM D1708) : 3400 psi
• Elongation (ASTM D1457) : 325%
• Impact Strength (ASTM D256) : no break
• Hardness (ASTM D2240) : 56 HB (shore D)
• Abrasion Resistance (Tabor) : 14.8 mg
• Coefficient of Friction (ASTM D1894) : 0.12 – 0.20 static ; 0.08 – 0.3 dynamic
• Dielectric Strength (ASTM D149) : 1325 volts per mil
• Use Temperature : 450°F max
• Melting Point : 500°F
• Thermal Conductivity : 1.4 BTU-in/h-ft 2-°F
• Chemical Resistance (ASTM D543) : Excellent
• Salt Spray Resistance (ASTM B117) : Good
• Water Absorption (ASTM D570) : < 0.01%
• Thickness : 0.001" - 0.003"
Benefits
• Non-wetting
• Excellent non-stick properties
• Renowned dielectric and cryogenic stability
• Great release properties