FEP Coating
Fluorinated Ethylene Propylene, known by its acronym FEP, is a melt-processable fluoropolymer, which means it melts and flows during oven curing.
Why FEP?
Fluorinated Ethylene Propylene, known by its acronym FEP, is a melt-processable fluoropolymer, which means it melts and flows during oven curing.
FEP shares most of its properties with other fluoropolymers, such as thermal and chemical resistance, low friction and non-stick. As a general rule, FEP coatings tend to have poorer coefficients of friction compared with PTFE or PFA, but they have better food non-stick properties.
FEP is used in the following industrial activities:
Chemical processing: FEP is resistant to the corrosive chemicals, acids and bases used in chemical processing.
Food processing: FEP has non-stick, non-toxic and non-reactive properties to help maintain quality and improve throughput within food processing.
Rubber moulding: FEP has excellent non-stick properties and permeation resistance provides mould release and easy clean properties.
As with all our coating processes, we prepare the surface first by degreasing and grit-blasting. The coating is wet sprayed, with the number of coats needed varying according to the particular FEP being applied. Strict coating coverage and thickness control is observed.
At Marcote we offer both a Teflon™ and Xylan® FEP coating service.
Performance Properties
- Chemical and thermal resistance
- Corrosion resistance
- Electrical insulation
- Non-stick
- Non-wetting
- Permeation resistance
Common Components for Coating
- Food approved in most cases
- Heat seal bars
- Hoppers
- Moulds
- Vibratory conveyors
- Weighing machines
Performance Information
- Chemical Resistance – Very Good
- Coating Thickness – 30µm to 180µm
- Colour – Various
- Corrosion Resistance – Generally 1,000 hours salt spray
- Diffusion Resistance – Nearly non-porous
- Fatigue – Very Good, 45,000 folding cycles
- Heat Conductivity – Temperature loss at 25µm thickness, approx. 15°C
- Loadability – Fair, has a tendency to cold flow
- Flammability – Inflammable
- Release Properties – Very Good
- Solvent Resistance – Insoluble
- Surface Roughness – Ra 1µm to 3µm
- Temperature Resistance – -40°C to +210°C, thermoplastic character
- Water Absorption – Generally <0.04%
- Wear Resistance – Very good, not suitable for abrasion or high pressure applications
Get Started with Marcote
In addition to our commitment to quality and care, at Marcote we prioritise open and reliable communication with our customers. We invite you to reach out to us to explore how we can assist you and meet your specific needs with our FEP coating service
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