What is a plastic PFA mold

PFA plastic (perfluoroalkoxy) is a tough, flexible fluoropolymer that is used for flexible and reusable medical equipment pharmaceutical and semi-con devices when chemical resistance, high purity, and flexibility are required.

PFA plastic is generally used for medical, pharmaceutical and semi-conductor plastics due to its extreme resistance to chemical attack, optical transparency, and overall flexibility. Keeping material purity is of critical importance in most injection molding applications, but particularly the medical, pharmaceutical and semi-conductor industries.

Perfluoroalkoxy (PFA plastic) is a melt-processable fluoropolymer that combines many of the best traits of PTFE and FEP. At 500 °F (260 °C), PFA has a higher service temperature than FEP and maintains its mechanical integrity in extreme temperatures even when exposed to caustic chemicals. PFA has greater tensile strength than PTFE and a smoother surface finish than both PTFE and FEP.


PFA’s is a top choice in semiconductor, chemical, oil and gas, aerospace, automotive, pharmaceutical, and medical industries. This fluoropolymer has excellent lubricity, clarity, flexibility, and chemical resistance, making it a versatile choice.

Devices used for medical, pharmaceutical measurement and semi-conductor are frequently exposed to harsh biological and chemical elements. Parts manufactured or coated in PFA materials provide good resistance and are an effective solution for avoiding contamination.

PFA is such an optimal material, that in some cases it can even replace stainless steel in medical devices.   PFA handles high temperatures and pressure well and is resistant to biological impurities. PFA is a go-to option for moving elements in medical devices because of its stiffness and long life, while providing flexibility and resistance to cracks.


PFA offers the highest temperature rating and broadest chemical resistance of any melt-processible fluoropolymer, making it ideal for extreme chemical and thermal environments. PFA is similar to FEP in many ways but in general has better mechanical properties at higher temperatures. PFA is one of the few plastics that is suitable for use in high-temperature and low-temperature applications.

Many PFAs are used in pharmaceutical industry because of mandated regulations for process component materials. PFA is very versatile in how parts can be manufactured, and it lends itself well to extrusion, injection molding, transfer molding,   blow molding and compression molding.   You will often see PFA in lab equipment because of its outstanding chemical inertness and flexibility.

PFA Properties

  • Chemically stable

  • Dielectric strength

  • Non-flammable

  • Chemical resistance

  • Anti-stick properties

  • Low friction

  • FDA approved

  • High purity

  • UV Resistant

  • Translucent

  • Low moisture absorption

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