PFA Sheet and Perfluoroalkoxy PFA Rod
Perfluoroalkoxy or PFA material is a premium type of fluoropolymer with properties similar to polytetrafluoroethylene (PTFE). It differs from the PTFE resins in that it is melt-processable using conventional injection molding and screw extrusion techniques. The standard premium PFA Price schedule is shown in the shopping kart pricing matrix below. Most PFA tube and larger plate and Rod shapes are custom molded to order on a special order basis.
What is PFA material?
PFA Polymer was invented by DuPont and is sold under the brandname Chemours or PFA. Other brandnames for granules are Neoflon PFA from Daikin or Hyflon PFA from Solvay Solexis and is processed by many molders and extruders.
PFA Plastic is very similar in composition to the fluoropolymers PTFE and FEP (fluorinated ethylene-propylene). PFA material and FEP both share PTFE's useful properties of low coefficient of friction and non-reactivity, but are more easily formable. PFA material is softer than PTFE and melts at 305 °C.
Another version of polytetrafluoroethylene perfluoro methylvinylether, with a different ratio of PTFE and MVE monomers from PFA, is MFA.
"Properties", Applications" and "Availabilities" for the Perfluoroalkoxy/PFA Sheet and Rod at the bottom of this page.
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Minimum $75.00 for internet orders. Orders less than $75.00 will be charged a $25.00 service charge.
The price given on this page is a material quote only. It does not include the additional shop processing fees.
CONDITIONS OF SALE
Properties, Applications and Availabilities for the Perfluoroalkoxy PFA Sheet and PFA Rod
Useful comparison tables of PTFE against FEP, PFA and ETFE can be found on DuPonts website, listing the mechanical, thermal, chemical, electrical and vapor properties of each, side by side.
PFA properties are similar to FEP in terms of its mechanical properties. These two are both superior to PTFE with regards to their flexibility, making them useful for tubing applications. However, their ability to endure repetitive folding (flex life) is actually lower than PTFEs own. PFA Plastic has a higher flex life than FEP.
PFA polymer is preferable to FEP where heat is concerned, but PTFE itself is slightly more resistant to heat than both. PFA is more affected by water absorption and weathering than FEP, but is superior in terms of salt spray resistance.
Perhaps the most impressive feature of PFA material is its electrical properties, as it features the dielectric constant of PTFE, and an almost identical dissipation factor, but a dielectric strength that is around four times higher.
ETFE is effectively a high strength engineering version of these three, and features what would likely be considered to be slightly degraded performance when compared with the other three.
Due to its flexibility, extreme resistance to chemical attack and optical transparency, this material, along with FEP Plastic is routinely used for plastic lab ware and tubing that involves critical or highly corrosive processes. Nalgene is a well known laboratory supplier that makes extensive use of the two materials.
Another application are sheet linings for chemical equipment where fabric backed PFA sheets (SYMALIT PFA). The use of a PFA liner allows to replace expensive metals and alloys like Inconel or Hastelloy with lined carbon steel or lined fibre-reinforced plastic (FRP). Examples are SYMALIT PFA lined columns, scrubbers, reactors and pipes which stand harsh environments like concentrated HF and HCl and halogens.
PFA Rod: .125" to 3.00"
PFA Sheet: .0602" to .500"
PFA Molded Plate: .005" to 6" custom made to thickness
PFA Molded Tube: Custom made to application
PFA Extruded Tubing: See Fluid handling section
Standard Color: Translucent white
minimums may apply
3" x 3" - .002, .005 thickness
6" x 6" - .010 thickness
6" x 12" - .015 thickness
12" x 12"
12" x 24"
18" x 18"
24" x 24"