MFA
also Neoflon MFA, Hyflon MFA
A fully fluorinated melt-processable copolymer similar to PFA but based on a methyl (rather than propyl) perfluoroalkoxy side group, giving comparable chemical/thermal resistance with somewhat easier processing and lower cost in some grades.
Reference datasheet — MFA is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
MFA grades and fills
MFA is supplied in 3 conditions, soft to hard.
Compare all 3 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Aqueous dispersion | Pick for spray/dip fluoropolymer coatings, glass-cloth impregnation and thin barrier layers on metal, cured above the melting point. | 12 | 22 | 300 | 55 Shore D |
High-flow injection molding grade | Pick for thin-wall or complex injection-molded fittings, valve bodies and semiconductor fluid-handling parts needing easy cavity fill. | 13 | 25 | 330 | 59 Shore D |
High-purity semiconductor grade | Pick for UPW and wet-etch chemical delivery where metal-ion and fluoride extractables must be minimized; same mechanicals, tighter cleanliness control. | 13 | 28 | 400 | 58 Shore D |
Supply forms, finishes and certifications
Ways MFA is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
EXT | Extrusion grade | Supply form |
PWD | Coating powder | Supply form |
FDA | Food-contact / medical grade | Certification |
NATDefault | Unfilled / natural translucent resin | Standard supply |
What is MFA?
A fully fluorinated melt-processable copolymer similar to PFA but based on a methyl (rather than propyl) perfluoroalkoxy side group, giving comparable chemical/thermal resistance with somewhat easier processing and lower cost in some grades. MFA has a density of 2.14 g/cm³ (0.0773 lb/in³), heavier than 98% of polymer grades. MFA has a yield strength of 13 MPa (1.89 ksi) and a tensile strength of 28 MPa (4.06 ksi) — weaker than 86% of polymer grades. Elongation at break is 400% and the elastic modulus is 0.55 GPa (0.0798 Msi).
What is MFA used for?
- Semiconductor wafer-handling components
- Chemical process linings
- High-purity tubing and fittings
- Wire/cable jacketing
Advantages
- Good corrosion resistance — 98/100, better than 99% of polymer grades
- Good UV / weathering resistance — 98/100, better than 99% of polymer grades
- High service temperature — 240°C (464 °F), better than 92% of polymer grades
- Low moisture uptake — 0.02%, better than 92% of polymer grades
- Ductile — tolerates forming and impact — 400%, better than 86% of polymer grades
Limitations
- High mold shrinkage — 4%, worse than 99% of polymer grades
- Heavy — 2.14 g/cm³ (0.0773 lb/in³), worse than 98% of polymer grades
- High embodied carbon — 13 kg CO₂/kg, worse than 93% of polymer grades
- Low strength — 13 MPa (1.89 ksi), worse than 86% of polymer grades
MFA properties
Typical room-temperature values; bars are the position among polymer grades.
Physical6
MFA has a density of 2.14 g/cm³ (0.0773 lb/in³), heavier than 98% of polymer grades.
Mechanical9
MFA has a yield strength of 13 MPa (1.89 ksi) and a tensile strength of 28 MPa (4.06 ksi) — weaker than 86% of polymer grades. Elongation at break is 400% and the elastic modulus is 0.55 GPa (0.0798 Msi).
Thermal10
MFA is rated for continuous service to 240°C (464 °F). It conducts heat at 0.21 W/m·K (0.121 BTU/hr·ft·°F), better than 55% of polymer grades. Thermal expansion is 130 µm/m·K (72.2 µin/in·°F).
Electrical7
MFA is an electrical insulator with a dielectric strength of 24 kV/mm (609.6 V/mil) and a resistivity of 1×10¹⁶ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (98/100), better than 99% of polymer grades. UV resistance is excellent.
Sustainability4
Producing a kilogram of MFA takes about 250 MJ of energy and emits 13 kg of CO₂ — more than 92% of polymer grades. Typical recycled content is 0%.
Manufacturability8
MFA's machinability is good (55/100, worse than 64% of polymer grades); weldability very good (70/100); formability very good (80/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. MFA is highlighted; hover a dot for its name, or open the interactive family chart.
Working with MFA
Is MFA easy to machine?
Machines like PFA: very sharp positive-rake tools, high speed, light feed and good chip clearance; it is soft and creeps, so use light clamping, coolant-flood to avoid heat build-up and expect spring-back on tight tolerances.
Can MFA be welded?
Fusion/hot-gas welding of sheet and liners works with matching MFA rod above ~300 °C in an inert or clean-air stream; adhesive bonding requires chemical etch or plasma/corona treatment of the non-wetting surface.
Can MFA be formed, bent or molded?
Melt-process at 320–380 °C with corrosion-resistant (Hastelloy/nickel-alloy) barrels and dies, purge fully to avoid HF-generating degradation, and design for 3–5.5% shrinkage plus generous draft; rotolining and powder coating need slow ramp and full melt soak.
MFA chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| tetrafluoroethylene (TFE)mol basis, main backbone unit | 94 – 99 | 97 |
| perfluoro(methyl vinyl ether) (PMVE)comonomer giving melt processability; distinguishes MFA from PFA (PPVE) | 1 – 6 | 3 |
What surface finishes work on MFA?
No painting, plating or anodizing; surfaces are inherently non-stick and release-prone. Cosmetic finish is set by tool polish or by flame/plasma treatment when printing or bonding is needed.
Equivalent designations
Standards and trade names that resolve to MFA in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Trade names
- Neoflon MFAHyflon MFA
How much does MFA cost?
MFA is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
MFA — frequently asked
What is MFA used for?
MFA is typically used for semiconductor wafer-handling components, chemical process linings, high-purity tubing and fittings and wire/cable jacketing. In short: easier-processing PFA alternative; fully fluorinated to 240 °C; high-purity semiconductor grade.
What is the yield strength of MFA?
MFA has a typical yield strength of 13 MPa (1.89 ksi) and a tensile strength of 28 MPa (4.06 ksi) — weaker than 86% of polymer grades. Strength varies by condition: see the 3 listed tempers.
Is MFA easy to machine?
Reasonably — machinability is rated good (55/100, worse than 64% of polymer grades). Machines like PFA: very sharp positive-rake tools, high speed, light feed and good chip clearance; it is soft and creeps, so use light clamping, coolant-flood to avoid heat build-up and expect spring-back on tight tolerances.
Can MFA be welded?
Yes — weldability is rated very good (70/100). Fusion/hot-gas welding of sheet and liners works with matching MFA rod above ~300 °C in an inert or clean-air stream; adhesive bonding requires chemical etch or plasma/corona treatment of the non-wetting surface.
What surface finishes work on MFA?
No painting, plating or anodizing; surfaces are inherently non-stick and release-prone. Cosmetic finish is set by tool polish or by flame/plasma treatment when printing or bonding is needed.
Can MFA be formed, bent or molded?
Melt-process at 320–380 °C with corrosion-resistant (Hastelloy/nickel-alloy) barrels and dies, purge fully to avoid HF-generating degradation, and design for 3–5.5% shrinkage plus generous draft; rotolining and powder coating need slow ramp and full melt soak.
What is the maximum service temperature of MFA?
MFA is rated for continuous use to about 240°C (464 °F), and briefly to 260°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does MFA cost?
MFA is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Hyflon MFA / PFA melt-processable perfluoropolymer product data — Solvay Specialty Polymers (2021)
- Fluoroplastics, Vol. 1–2: Non-Melt and Melt Processible Fluoropolymers — Elsevier / Plastics Design Library (Ebnesajjad) (2015)
- ASTM D3307 — Standard Specification for PFA-Fluorocarbon Resin Molding and Extrusion Materials — ASTM International (2020)
- ASTM D638 / D790 / D257 / D150 test methods — ASTM International (2022)
- CAMPUS / Prospector fluoropolymer datasheet aggregation — CWFG / UL Solutions (2024)
- PFA/MFA/FEP (2026)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.