Knowledge
Metal coating resources
Plain-language technical guides from the Vanguard team on the coatings we apply, starting with the fluoropolymer family: PTFE, FEP and PFA.
Technical Advantages of Teflon™ (PTFE) Coatings in Industrial Applications
PTFE coatings deliver operational reliability, product purity and cost-effective maintenance, making them a key engineering solution in advanced manufacturing.
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Technical Advantages of FEP (Fluorinated Ethylene Propylene) Coatings in Industrial Applications
FEP coatings combine non-stick performance, chemical inertness, thermal stability and clarity for efficient, safe and cost-effective operations.
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Technical Advantages of PFA (Perfluoroalkoxy) Coatings in High-Performance Industrial Applications
Ultra-low surface energy, continuous service near 260°C and near-universal chemical resistance make PFA the toughest fluoropolymer for demanding processes.
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PTFE vs FEP vs PFA at a glance
| PTFE (Teflon™) | FEP | PFA | |
|---|---|---|---|
| Service temperature | −200°C to 260°C, the highest rating in the family | About −200°C to 205°C | Continuous service approaching 260°C |
| Standout property | Lowest coefficient of friction; the benchmark for pure release | Melts and flows into a non-porous film; optical clarity and good dielectric properties | Non-porous film like FEP, with greater toughness and thicker builds |
| Chemical resistance | Inert to most chemicals | Strong resistance to acids, solvents and corrosive chemicals | Near-universal, including strong acids, bases, oxidizers and solvents |
| Compliance | FDA-compliant food-contact systems available | Often meets FDA and food-grade requirements | FDA, USP Class VI and semiconductor-grade specifications |
| Best for | Conveyor belts, extrusion dies, cutting tools, stamping dies, textile rollers | Molds, extruders, reaction vessels, piping, mixers, instrumentation | Reactor linings, transfer piping, high-temperature molds, pharmaceutical and semiconductor processing |
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